🔑 Key Takeaways
- Jeff Cavalier's science-based approach to fitness training emphasizes the importance of strength training and conditioning. For a basic fitness program, he suggests a 60-40 split, with three days of training and two days of conditioning, tailored to your specific training goals.
- It's vital to keep workouts under an hour, warm up properly, and select a workout split that fits your schedule and is enjoyable. Alternative options like push pull legs split contribute to overall health benefits too.
- While bro splits can be effective for focusing on one muscle group, combining related muscle actions can enhance results. Choose a training style that aligns with goals and is feasible to follow consistently.
- Take a day of rest in between weight training sessions to maintain consistency and reduce fatigue. Split sessions and switch orders to maintain focus. Incorporate cardio twice a week at the end of your workout to avoid compromising weight training. Efforts and consistency drive results.
- To achieve a well-rounded fitness result, it's important to challenge muscles for size increase while engaging in footwork drills or high-intensity interval training to improve cardio and brain longevity. Behaviors and nutrition have the biggest impact on fitness, supplementing workouts with actual skills is beneficial.
- Flexing a muscle to the point of almost cramping during exercises can indicate the muscle's ability to grow. Focusing on making the targeted muscle do more work or get a stronger contraction leads to better results and understanding which muscle is working.
- Engage muscles actively to create hypertrophy. Seek inefficiency in movements and work on making the whole package work together for greater output. Consistency and maintaining a strong connection with certain areas of the body is key. Disinterest and lack of effort can hinder progress.
- Consistency and effort in mindful flexing and deliberate muscle contraction throughout the day strengthens nerve to muscle connections and improves exercise effectiveness. Proper recovery assessment and consistent training can lead to efficient muscle growth and development.
- Measure muscle soreness and grip strength to determine recovery levels on an individual basis. Use this information to adjust your training schedule for optimal results, as a general schedule may not be effective for all muscles.
- Measuring grip strength can guide your decision on whether to hit the gym or not by indicating your level of recovery and wakefulness. Sleep and recovery are essential for growth, strength, and staying sharp.
- Choosing the right sleep position is important to prevent strain and injuries to your body. Establishing muscle length before sleep can promote recovery and create new changes. Be mindful of your body position to ensure a good night's rest.
- Active and passive stretching help increase muscle flexibility without necessarily increasing the muscle length. Avoid doing it near workout time to maintain the efficiency of stored motor patterns and wait until later in the day to promote better recovery.
- Practicing dynamic stretching before bed increases muscle length, improves coordination, and prepares the body for better performance the next day. Pro athletes swear by this routine for workout readiness, and so can you.
- Jumping rope improves neurological patterns, conditioning, and timing--while also offering a variety of exercises. Landing on the ball of your feet efficiently is crucial for adaptability, making the foot a key part of the body for effective movements.
- Jumping rope helps to develop stability in the body, builds stamina and requires minimal equipment. Focusing on external rotation while weight training helps in avoiding inward rotation that affects shoulder mechanics and posture. It is important to focus on shoulder health since the shoulder joint has the most mobility but least stability.
- Train your rotator cuff's external rotation to maintain healthy shoulders. Avoid exercises that cause internal rotation bias and joint stress, like upright rows. Opt for alternative exercises, like the high pull, that support internal and external rotation balance.
- Regular external rotation exercises can reduce shoulder pain and prevent injuries, making them a better choice over upright rows. Understanding body biomechanics helps choose appropriate exercises.
- Pain in one area may not always be the cause of the pain itself. It is essential to understand the biomechanics of the body to identify the root cause of discomfort and utilize exercises and therapy accordingly.
- Properly addressing a problem in one area of the body may require attention to other areas with imbalances. Seeking help to identify weak areas can prevent adaptations and compensations.
- Compensating for pain in one area can cause strain on other parts. Understanding how the body responds to movements can prevent pain in the long term. Encouraging skepticism advances understanding of medicine.
- Using proper form and a deeper grip can help prevent injuries like medial elbow epicondylitis. If experiencing pain, opt for alternative exercises and use heat compresses for inflammation relief.
- Heat and cold therapy have their benefits but depend on personal preference and injury type. Tracking workouts through precision record-keeping can improve awareness. Avoid social media distraction during workouts. Cooling technology may be the next big thing in performance therapy.
- By increasing awareness of your performance and setting objective goals, you can make your workouts more effective. Commitment to a balanced, low sugar, and lower fat diet can improve your quality of life, especially during pre and post-training.
- Cut out excess fat and sugar instead of completely excluding them from your diet. This approach reduces calories and promotes healthy cell development. Cultivating healthy food practices can lead to a lean and healthy body and better overall physical and mental well-being.
- Structuring meals with fibrous carbs, protein, and starchy carbs helps with portion control and balanced nutrition. Avoid processed high sugar foods and focus on healthier protein sources cooked in a palatable way.
- Developing discipline around carbohydrate intake and finding the right eating style can lead to a healthier diet. Experiment with different approaches, control portion sizes, and develop healthy eating habits that work for your individual needs.
- Investing in high-quality, less processed foods and finding enjoyable exercises can save you from costly medical treatments caused by poor nutrition. Enjoying what you eat and finding an exercise you like are crucial for long-term health and fitness.
- It is safe for children to start non-body weight resistance training at 13, but beginners of any age should start with bodyweight exercises to build strength and control. Encouraging safe exercise and unstructured play from a young age can promote lifelong healthy habits.
- Consistent post-workout replenishment up to 3-4 hours after training is key. Pre-workout nutrition can have a longer window for utilization, and specific approaches to nutrition are not strict. Choosing what works best for you is important to maintain output during training.
- Prioritizing sleep, hydration, caffeine, and music as pre-workout aids can enhance performance. Consuming carbs late at night and focusing on shorter, smarter training sessions can yield better results. A post-workout meal replenishes the body for the next day.
- Consistency is crucial in fitness progress. Find an approach that motivates you and avoid a dogmatic mindset. Mentoring and teaching can also increase love of fitness. Jesse's progress shows the power of consistency.
- Success is a journey and not a destination. With patience, dedication, and guidance, anyone can achieve their goals. You never know how someone's influence can impact your life.
- With consistent effort and a logical backbone, we can overcome shyness and achieve our fitness goals. Learning from experts can help us gain deeper knowledge and appreciation of the gift of fitness.
📝 Podcast Summary
Jeff Cavalier's Unique Approach to Fitness Training
Jeff Cavalier's online content, which is grounded in science, clear, and actionable, has been immensely useful to Andrew Huberman for over a decade. Cavalier has an understanding of not just how muscles and bones work, but also how the nervous system interfaces with them. His approach to fitness is unique in that he believes if you want to look like an athlete, you should train like one. For a basic fitness program, he suggests a 60-40 split, leaning towards weight training for strength, and cardio for conditioning. A great training week would be three days of training and two days of conditioning, although this may vary depending on your training goals.
Importance of Dose Restraint and Choosing a Suitable Workout Split
To see the benefits of dose restraint training and conditioning, it is important to keep workouts under an hour. Depending on the split being followed, more has to be done in a given amount of time. While training for strength, longer rest times between sets could prolong the workout. However, when it comes to overall health benefits, working out for under an hour can get the job done. It is also important to warm up properly before starting the workout. Choosing a split that fits one's schedule and that they enjoy is crucial. A split not done is not effective. Opting for alternative options like a push pull legs split can be done once or twice a week.
The Pros and Cons of Bro Splits for Muscle Group Training
Bro splits or training one muscle group per day for strengthening aesthetics can be effective if one is sticking to it and achieving desired results. It allows the individual to focus on one muscle group, dial in better on the exercise, and get more out of training. Science shows that there are smarter ways to do them though, like hitting related muscles on the next day, achieving synergy between exercises. Training six days a week with push-pull-legs can impact the schedule, but grouping similar muscle actions together can be a better way to train. However, one must choose a training style that aligns with their goals and is realistic to follow.
Effective Weight Training Strategies
To maintain consistency and reduce fatigue, it's ideal to have a day of rest in between weight training sessions. Two-a-day training can be effective but is not practical for most people's schedules. Splitting upper and lower or pushing and pulling sessions and switching the order can help maintain focus and effort. Cardiovascular exercise should be incorporated at least twice a week for overall health, but for those looking for aesthetics, it should be done at the end of the workout to avoid compromising weight training. Young people can get away with more, but consistency and effort drive results. Efforts should not be compromised while training.
Combining Strength Training and Conditioning for Optimal Results
Blending strength training with conditioning exercises can lead to more well-rounded results. Engaging in challenging footwork drills or high-intensity interval training can provide a mental challenge and improve cardio while still maintaining muscle strength. Rather than just focusing on moving weights, it's important to focus on challenging muscles for muscle size increase. Supplementing workouts with actual skills can benefit brain longevity, as engaging upper motor neurons is important for controlled action. The behaviors and nutrition have the biggest positive effects on fitness, and blending strength and cardio exercises can be more effective in achieving a well-rounded result.
The Importance of Mind-Muscle Connection in Strength Training
Developing a strong mind-muscle connection is key to improving results in strength training. The cavalier test involves flexing a muscle to the point where it almost cramps to indicate the muscle's ability to grow. By seeking out ways to make the targeted muscle do more work or get a stronger contraction during exercises, you can stimulate that muscle well and improve muscularity. The mind-muscle connection is a real thing when it comes to predicting results, and you can get better at it. In addition, developing a strong mind-muscle connection can help you understand which muscle is working during exercises, leading to better results. Overall, focusing on mind-muscle connection can transform your strength training results.
Tips for Building Muscularity and Maintaining Hypertrophy
To build muscularity and hypertrophy in the muscles, seek ways to make your muscles feel uncomfortable by engaging them more actively. Practice and consistency can help in maintaining a strong connection with certain muscle groups. Seeking inefficiency in movements is ideal when creating hypertrophy while working on making the whole package work together for a greater output. Maintaining muscularity requires upkeep, and the development of a strong connection with certain areas of the body is key while disinterest and lack of effort can hinder progress
Developing the Mind-Muscle Connection for Efficient Hypertrophy
Consistency and effort are key when developing the mind-muscle connection for efficient hypertrophy. Mindful flexing and deliberate muscle contraction throughout the day engages neuro-plasticity, strengthening nerve to muscle connections and improving the effectiveness of exercises. Recovery of muscles varies and can differ from the 48-72 hour protein synthesis window. Assessing recovery locally at the muscle level and systematically at the nervous system level is important. A physical scale can be helpful in assessing cognitive function in people with Alzheimer's and dementia, as well as tracking recovery and muscle readiness. Mindful and consistent training, along with proper recovery assessment, can lead to efficient muscle growth and development.
How to Decode Your Muscle Recovery for Better Training
The recovery rate of muscles can vary from person to person and muscle to muscle. Muscle soreness is one of the only tools available to measure local-level recovery. Using grip strength measurements can help determine overall recovery, as it is highly correlated with performance. It is important to crack the code on an individual basis to properly dictate a muscle's training schedule based on its recovery. Relying on a general training schedule of every eighth day or the recommended 48 hours may not be effective if the muscle is not fully recovered.
Measuring Grip Strength for Recovery and Wakefulness
Measuring your grip strength can be a simple and low-cost tool to determine your level of recovery and wakefulness, and guide your decision to hit the gym or not. According to circadian neurobiology, grip strength is low in the middle of the night, reaches its peak in mid-morning, and drops off again in the afternoon. Using a hand grip dynamometer could provide more detailed information for PTs and athletes, but comes at a higher cost. Recovery is key for growth and strength, and sleep position can have a significant impact on posture, pain, and performance. Sleep is also essential for reordering neuroconnections and stimulating learning, making it crucial for staying sharp and getting smarter.
The Impact of Sleep Positions on Your Body
The position you sleep in can have physical components that affect your body. Prolonged sleep positions can lead to strain, stress or injuries that can occur, such as sleeping on your stomach can put excessive extension on the lumbar spine resulting in an uncomfortable position. Sleeping on your side with your knees up towards the chest can reinforce muscle shortening overnight. It's good to establish length in muscles prior to going into a state where you'll be non-moving, and recovering to create new changes in the muscle. Choosing a position that's least abrasive to your body, which ensures good sleep and a mindful eye towards your body position in sleep is crucial.
Two types of stretching - active and passive.
Stretching can be divided into two types - active and passive stretching. Dynamic work and passive stretching are done to increase the flexibility of the muscle without necessarily increasing its length. This type of stretching should be done far away from the workout, as it can disrupt the length tension relationship with muscles that cause them not to rely on stored motor patterns for efficiency. It can also impair performance. It is better to do stretching later in the day to promote better recovery as part of the healing and recovery process results in a muscle that is slightly shorter rather than increased in length.
Dynamic Stretching: A Pre-Sleep Routine for Improved Muscle Readiness
Prior to sleeping, one must maintain more muscle length, since more length means more leverage to contract. To achieve this, one can perform dynamic stretching which increases muscle readiness and explores the ends of the range of motion. These active stretching drills help the nervous system, warm up the body, and improve muscle readiness without impairing performance while exploring increased ranges. Pro athletes spend a lot of time on dynamic stretching routines for improved alertness and workout readiness. These athletes tend to be gifted with natural coordination, abilities, and strength, making them effortlessly good at any sport that they pick up. Practicing dynamic stretching before sleep can allow muscles to have more leverage, making them ready for performance the next day.
Why Athletes Should Master Jumping Rope
Competitiveness is a remarkable trait of athletes and military personnel alike. Mastering the skill of jump roping can improve neurological patterns, conditioning, and timing. It is important to learn how to land on the ball of your feet efficiently, as the foot is a crucial part of the body that needs adaptability to the surface. Learning to jump rope is a continuous challenge, offering a variety of exercises from jumps with two feet to corkscrews. It is not just about changing the exercise but changing the orientation of your body in space. The foot has always been one of the most important parts of the body, as it needs to be adaptable for push-off, becoming a rigid lever for the most effective movements.
Importance of Jumping Rope and Shoulder Health in Fitness Training
Jumping rope is an effective way to train your body to experience ground reaction forces and develop the capability to push off the midtarsal joint with leverage, building stability in the body. Lack of this capability can cause stresses to travel up the kinetic chain and affect ankle, knee, hip and low back. Jumping rope is also a great cardio workout that requires minimal equipment. Additionally, it is important to strive for external rotation while weight training to avoid inward rotation that can affect posture and shoulder mechanics. The shoulder joint has the most mobility but least stability, making it crucial to focus on shoulder health.
Importance of External Rotation Function of Rotator Cuff for Healthy Shoulders
To maintain healthy shoulder biomechanics, it is important to train the external rotation function of the rotator cuff through specific exercises. Everyday life naturally causes an internal rotation bias that can lead to joint stress during activities like raising the arm. Exercises that force internal rotation, such as upright rows, can exacerbate this issue and cause impingement. An alternative exercise, like the high pull, can provide similar benefits without compromising biomechanics. By focusing on the balance between internal and external rotation, you can support the long-term health of your shoulder joint, which is crucial for activities like raising the arm over the head.
Importance of Prioritizing External Rotation Exercises for Shoulder Health
Focusing on external rotation exercises for the shoulder muscles is crucial for maintaining healthy relationships with overhead movements and preventing injuries. Although upright rows can target similar muscles, external rotation exercises offer the same benefits without the possibility of harm. Therefore, individuals should prioritize external rotation exercises over upright rows. Consistent training in external rotation can reduce the likelihood of pain, especially in daily activities that involve internal rotation of the shoulders. The same is true for yoga practitioners who need to incorporate more external rotation exercises into their routine. Understanding the biomechanics of the body can help identify the root cause of pain and choose appropriate exercises to prevent further injury.
Understanding the Connection Between Pain and Biomechanics
Many times what people think of as back pain, knee pain, neck pain, headache, or shoulder pain may actually be the consequences of something happening above or below that area. Poor biomechanics up and down the canal chain can cause the medial glute to tighten down and press on the sciatic nerve, causing pseudo-sciatica pain. This is where glute media exercise comes to the rescue. By applying pressure to the trigger points and contracting the muscle, it helps to thread the muscle through the pressure. This exercise can be helpful for people who don't suffer from back pain but think they have one. So, focusing on biomechanics, proper exercises, and trigger point therapy can be a valuable tool for pain management and recovery.
Understanding the Interconnectedness of the Body
The body is interconnected and one problem in a certain area can be sourced from above or below, usually below. It is important to become educated and work on not just extending the hip or shoulder, but also the abduction and external rotation. Balancing out the tension from weak areas to dominantly tight areas can eliminate adaptations and compensations. Knee pain is not necessarily from the knee, but can be sourced from the hip, ankle and foot. Chronic ankle sprains can lead to back pain as the body compensates. Finding the source of a problem is essential and often requires assistance to help identify weak areas and imbalances.
The intricacy of the body and the importance of proper form for preventing pain and injury.
Compensating for pain in one part of the body can put strain on other parts, leading to a cycle of pain and compensation. Gripping weights incorrectly can also lead to elbow pain, highlighting the intricacy of the body and the importance of proper form. The body is very smart at finding compensation but there's no guarantee that it won't lead to other issues. Skepticism is healthy, but not cynicism, which can hinder progress in science and medicine. Encouraging normal skepticism can spark conversation and advance understanding. Understanding how the body responds to different movements and loads can help prevent pain and injury in the long term.
The Importance of Proper Form and Grip in Chin-Ups for Injury Prevention
Proper form and grip on exercises like chin-ups is crucial to avoid injury and inflammation, especially around the medial elbow joint. Gripping deeper to use more leverage from the Palm while encapsulating the bar or dumbbell can help eliminate pressure on the FDS muscle, which is most strained when gripping shallowly. Inflammatory conditions like medial elbow epicondylitis or golfer's elbow are common in gym goers due to the strain on ill-equipped muscles. It's best to avoid exercises that cause pain when inflamed and opt for alternative exercises that train similar muscles without causing stress. While cold water immersion may not be best after hypertrophy restraints, a cold shower is usually fine, heat compresses are frequently used by coaches and athletes post-performance for inflammation relief.
The Pros and Cons of Heat and Cold Therapy, Precision Record-Keeping, and Potential of Cooling Technology in Physical Therapy
Heat and cold therapy are common in physical therapy for recovery, but there is no standard approach in terms of which one works better as it depends on personal preference and the type of injury. Cold therapy has anti-inflammatory effects, but heat therapy can bring blood to the affected area. Precision record-keeping like training journaling can raise awareness and improve workouts. Being neurotically fixed to the protocol is not necessary, but raising awareness of rest time is important for metabolic overload. Social media distraction during workouts can interfere with protocol and progress. Cooling technology may have untapped potential in the performance arena.
Maximize Your Workouts with Purposeful Training and Smart Nutrition
Increasing awareness of your performance and setting objective goals can help make workouts more effective. Training with purpose can empower individuals to make changes and improve their quality of life. Nutrition can be a touchy subject, but commitment is key to making it work. A low sugar, lower fat approach with a balanced intake of carbohydrates and protein can be effective. People often struggle with nutrition because the opportunity to eat incorrectly or unhealthily is high. Sensitive times like pre and post-training require careful consideration, but the principles of good nutrition hold true at all times.
Cutting Excess Fat and Sugar - A Sustainable Approach to Nutrition
Cutting out excessive fat and sugar, rather than completely excluding them from the diet, is a sustainable approach for weight loss and overall nutrition. This approach reduces the calorie intake and promotes the development of healthy cells. Exclusionary approaches to diets may work for some people, but it is crucial to ensure that it is sustainable and free from other repercussions. Developing a taste for healthy food through memory can be satisfying and adaptive. Avoiding certain unhealthy food practices can lead to a lean and healthy body. Cultivating practices around avoiding unhealthy food habits can be beneficial for overall physical and mental wellbeing.
Jeff Cavaliere's Plate Method for Healthy Eating
Jeff Cavaliere suggests a 'plate method' to structure meals in a healthy way. The largest portion of the plate should be fibrous carbohydrates like green vegetables, followed by the next largest portion for protein, and then the smallest portion for starchy carbohydrates like sweet potatoes or pasta. This helps with portion control and provides balanced nutrition. Highly palatable, processed high sugar foods like donuts can reshape the brain in dangerous ways according to a neurosurgeon who studies eating disorders. While the plate method may be less effective for emotionally triggered eating and eating disorders, it can help people struggling with healthy eating habits. It's important to focus on healthier protein sources and cook it in a more palatable way without losing its nutritional value.
Finding the Right Approach to Carbohydrate Intake for a Healthier Diet
For a healthier diet, it's important to develop discipline around carbohydrate intake, as starchy carbs can trigger overeating and a desire for more. However, carbohydrates can still be enjoyable if consumed in moderation. The key is to find an eating style that works for you and that you can consistently maintain over time. This may involve experimenting with different approaches, such as intermittent fasting or avoiding processed and sugary foods. Ultimately, the most important factor is calorie manipulation, so finding a way to control portion sizes and curb grazing habits can be beneficial. With practice, people can learn to control their behaviors and develop healthy eating habits that work for their individual needs.
The importance of a healthy diet and exercise
Maintaining a healthy and balanced diet is crucial for long-term health and longevity. Investing in healthier foods, like high-quality and less processed ones, can save you from costly medical treatments caused by poor nutrition. Repetitive eating with limited variations of foods that you enjoy is a simple way to maintain a healthy diet. However, it is essential to enjoy what you eat; otherwise, no nutrition plan will work in the long run. Men and women do not have to train differently as physiologically, there is no difference. Finding an exercise that you enjoy and engage in regularly is the most important factor in achieving your fitness goals.
Introducing Non-Body Weight Resistance Training for Children: When and How
It is okay for children to explore non-body weight resistance training from the age of 13 after the onset of puberty. However, it is important to start with bodyweight exercises for all beginners, regardless of age, to build a foundation of strength and command of their body in space. Children naturally enjoy playing and moving their bodies, and avoiding structured training until they are older may contribute to the rising rate of childhood obesity. Encouraging children to engage in smart, safe exercise at a young age can set them up for a lifetime of healthy habits. Additionally, unstructured play and time outdoors can have significant benefits for physical and mental health.
Debunking Myths About Pre and Post-Workout Nutrition
Post-training nutrition is important for replenishing the energy lost during the workout, but the idea of strict time constraints for consuming protein and carbohydrates has been debunked. The body can still benefit from replenishment up to 3-4 hours after the workout. Consistency in incorporating a post-workout meal or window is the key factor in building a habit of replenishing the energy lost in training. Pre-workout nutrition can have a longer window for nutrient utilization, and consuming protein surrounding the workout is important. However, the specific approach to pre or post-workout nutrition is not strict, and changes can be made easily to see benefits. Stimulants and pre-workout supplements are not necessary for everyone, and it's important to choose what works best for you to maintain a high level of output during training.
Proper Nutrition for Optimal Performance
The most important factor for nutrition is to perform at the highest level. Ingesting anything right before or near the workout can lead to worse performance. A pre-workout can easily offset the benefits of whatever nutrient approach you took if you struggle through your workout. A good night's sleep, hydration, caffeine, and music are the best pre-workout aids. Eating carbs late at night is okay as it helps to restore glycogen and help to sleep. Training harder, smarter, and for a shorter period of time will yield better results. The meal after the workout feels like a physiological reward for the hard effort put in the gym and replenishes the body for the next day.
The Importance of Consistency in Fitness and Finding Your Approach
Consistency is key in maintaining a love of fitness and seeing progress. Finding the right nutrition and training approach that motivates you to go to the gym regularly is crucial. While there are many ways to approach fitness, it's important to avoid a dogmatic, one-way-only approach that can discourage people. Mentoring and teaching others can also increase consistency and love of fitness, especially once one has proficiency in it. Jesse, Jeff Cavaliere's mentee, is a great example of the progress that can be made through consistency and finding what works for you. Physical changes are evident, but there's still much work to be done to continually improve.
The Transformational Journey of Jeff Cavaliere and Jesse
Watching someone transform slowly is a beautiful thing. Majority of people might think that success can be achieved instantly, but the journey towards success is more important. Jeff Cavaliere and Jesse's journey showcases the realistic expectation of the transformational journey. People can also relate to Jesse because he is just like any other person who needs to train himself daily. Jeff never forced anyone to learn something, just like he didn't push Jesse to train himself. Jesse learned by listening to Jeff. You never know how someone's presence or environment can influence them. Jeff doubted Jesse's interest in bodybuilding, but his interest grew as he learned more about it.
The Power of Consistency and Hard Work in Fitness Transformation and Personal Growth
Consistency and hard work can lead to amazing transformations. The journey towards fitness may not always be instant, but it can definitely be uplifting and relatable. Watching Jesse's transformation from a shy and reserved individual to someone who now has his own skits and intros is a testament to this fact. It's important to have a logical backbone and consistent themes in our training regimens. If we stick to these themes and put in the consistent hard work, we can achieve our fitness goals. Fitness is an immense gift, and we should be grateful for the opportunity to work towards it. Learning from the experts like Jeff Cavaliere and Andrew Huberman can help us gain a deeper understanding of the science behind it.