AMA #2: Improve Sleep, Reduce Sugar Cravings, Optimal Protein Intake, Stretching Frequency & More

Introduction

In this section, Andrew Huberman introduces the Huberman Lab podcast and explains that this episode is an ask me anything or AMA episode. He also talks about the premium channel subscription model and how it supports research being done at major universities.

Introduction to the Huberman Lab Podcast

• Andrew Huberman welcomes listeners to the Huberman Lab podcast where they discuss science and science-based tools for everyday life.

• This episode is an ask me anything or AMA episode.

• The premium channel subscription model was launched in order to raise support for the standard Huberman Lab podcast channel.

• The premium channel is designed to support exciting research being done at major universities like Stanford and elsewhere.

Premium Channel Subscription Model

In this section, Andrew Huberman talks more about the premium channel subscription model and how it works.

How the Premium Channel Subscription Model Works

• The standard Huberman Lab podcast comes out once a week, every Monday, and is zero cost to consumers.

• The premium channel subscription model supports exciting research being done at major universities like Stanford and elsewhere.

• Listeners can subscribe for $10 a month or $100 a year on hubermanlab.com/premium.

• There is also a lifetime subscriber option available.

How to Become a Premium Subscriber

In this section, Andrew Huberman explains how current subscribers can download the premium podcast feed, while non-subscribers can listen to the first 15 minutes of an episode before deciding whether or not they want to become a premium subscriber.

Becoming a Premium Subscriber

• Current subscribers can go to hubermanlab.com/premium and download the premium podcast feed.

• Non-subscribers can hear the first 15 minutes of an episode before deciding whether or not they want to become a premium subscriber.

Improving Sleep

In this section, Andrew Huberman answers a listener's question about how to improve deep sleep and explains what deep sleep is.

What is Deep Sleep?

• Deep sleep is sometimes referred to as slow-wave sleep.

• During deep sleep, you secrete growth hormone which is involved in metabolism, protein synthesis, muscle repair.

• Most of the growth hormone release is restricted to the first half of your sleep night.

• Deep sleep tends to occur in the first half of the night and it's important for repair of bodily tissues.

How to Improve Deep Sleep

• Behavioral tools can be implemented to improve your sleep. A downloadable PDF that lists out these tools is available at hubermanlab.com.

• To specifically increase deep sleep, one can try protocols backed by science.

Importance of Deep Sleep

In this section, the speaker discusses the importance of deep sleep and how it relates to metabolism.

Metabolism during Sleep

• Researchers monitored people's breath and blood draws while they slept in a laboratory.

• During the first half of the night, while people are in deep sleep, their body metabolizes energy differently than it does in the second half of the night.

• This is important for establishing metabolism and regulating insulin and blood glucose during the daytime.

Measuring Deep Sleep

• Sleep trackers estimate slow-wave sleep and rapid eye movement sleep using heart rate, heart rate variability, and body movement.

• However, these estimates are not perfectly accurate compared to methods used in a sleep laboratory such as EEG and EMG.

Increasing Deep Sleep

• Avoid drinking alcohol within 8 hours prior to bedtime or at all as it disrupts slow-wave sleep.

• Avoid caffeine intake within 8 to 12 hours of bedtime for better quality rapid eye movement sleep.

• Avoid cannabis use within 8 to 12 hours of sleep if your goal is to improve the quality of your sleep.

Conclusion

The speaker concludes by summarizing key points about deep sleep.

Key Points

• Getting sufficient deep sleep is vital for good health.

• Balancing total amount of slow-wave and rapid eye movement across the night is important.

• Don't obsess over getting exact percentages.

• Alcohol, caffeine, and cannabis can disrupt slow-wave and rapid eye movement sleep.

The Impact of Alcohol, Cannabis and CBD on Sleep Quality

In this section, the speaker discusses how alcohol, cannabis, and CBD can help people fall asleep but also disrupt and reduce the quality of sleep.

Negative Effects of Alcohol, Cannabis and CBD on Sleep Quality

• Research shows that although alcohol, cannabis, and CBD can help people fall asleep, they disrupt and reduce the quality of sleep.

• Check out episodes of the Huberman Lab podcast to learn more about the health benefits and detrimental effects of alcohol and cannabis in certain situations.

• Avoid caffeine, alcohol, THC and CBD within 8 hours before sleep if your goal is to improve slow-wave sleep.

• Avoiding food intake in the two hours prior to sleep greatly assists in growth hormone output during early stages of night.

Balancing Hunger with Slow-Wave Sleep

• Being too hungry or eating too close to bedtime can disrupt sleep. Arrange eating schedule such that you're not eating too close to bedtime but not going to bed so hungry that you can't fall asleep or get into deep sleep.

• Eating a small amount of food should not disrupt slow-wave sleep too much. However, avoid large meals right before going to bed unless completely fasting will prevent you from getting any sleep at all.

• If possible avoid food for three or four hours prior to sleeping for sake of increasing slow-wave sleep.

Improving Slow-Wave Sleep Transitions

• Exercise improves the quality of slow-wave sleep by increasing slow-wave stability.

• Exposure to bright light during daytime hours helps regulate circadian rhythm which leads to better transitions between different sleep stages.

• Avoiding blue light exposure from electronic devices before bedtime can improve slow-wave sleep transitions.

Exercise and Sleep

In this section, the speaker discusses a study that looked at the effects of exercise on sleep quality. The study found that moderate-intensity exercise performed at least six hours before bedtime can improve slow-wave sleep.

Effects of Exercise on Sleep Quality

• The study examined whether exercising prior to sleep affects sleep quality.

• Participants either slept or exercised for an hour at 60% of their VO2 max, at least six hours before bedtime.

• Moderate-intensity exercise was found to enhance slow-wave sleep.

• The study did not examine the effects of other types of exercise, such as resistance training.

Importance of Slow-Wave Sleep

• Slow-wave sleep is important for repairing bodily and brain tissues and removing debris in the brain.

• Getting sufficient slow-wave sleep is crucial for overall health and preventing conditions like dementia.

Tips for Improving Sleep Quality

• Exercising moderately at least six hours before bedtime can improve slow-wave sleep.

• Avoiding caffeine and alcohol within eight to twelve hours before bedtime can also improve overall sleep quality.

• Other behavioral tools, such as getting morning sunlight and avoiding bright light from 10:00 PM to 4:00 AM, can also help improve sleep quality.

Supplements for Better Sleep

In this section, the speaker discusses supplements that can improve sleep quality and duration.

Magnesium Threonate and Theanine

• Magnesium threonate and magnesium bisglycinate are recommended for improving sleep.

• Theanine is another supplement that can be taken to improve sleep quality.

• People who experience intense dreams or night terrors may want to avoid taking theanine.

Apigenin

• Apigenin, found in chamomile, is another supplement that can be taken to improve sleep quality.

• These supplements should be taken 30 to 60 minutes before bedtime.

Inositol

• Inositol, specifically myo-inositol, can greatly enhance the quality of sleep when used alone or in combination with other supplements.

• Studies have shown that inositol improves the structure and duration of slow-wave sleep.

• Taking 900 milligrams of myo-inositol prior to sleep greatly enhances the ability to fall asleep and stay asleep throughout the night.

Monitoring Sleep Quality

• The speaker monitors his sleep using a combination of Eight Sleep and WHOOP trackers.

• Taking 900 milligrams of inositol prior to sleep makes it easier for him to fall back asleep if he wakes up in the middle of the night.

Improving Sleep Quality

In this section, Dr. Matthew Walker discusses ways to improve sleep quality and the potential health issues associated with a high level of rapid eye movement sleep and a lower level of deep sleep.

Tools for improving sleep quality

• 900 milligrams of inositol can be a useful tool for improving fertility and enhancing slow-wave sleep.

• 60 minutes of exercise can also be a tool for improving sleep quality.

• Avoiding caffeine and alcohol is an excellent tool for enhancing the total amount of slow-wave sleep.

Health issues associated with low levels of deep sleep

• It's not clear that having a high level of rapid eye movement (REM) sleep and a lower level of deep sleep would cause any specific health issues.

• REM sleep is thought to act as a sort of trauma release where people are paralyzed in body, but undergoing some pretty emotional stuff within their dreams.

• Studies have shown that people who have been deprived of REM sleep have reduced ability to manage emotionally during the daytime.

• Reduced slow-wave sleep could lead to reduced ability to recover from exercise, injury, or relate to the immune system.

Importance of balancing slow-wave and REM sleep

• Strive to try and balance the amount of slow-wave and REM across the entire night as it will tell you whether or not you're getting sufficient total sleep.

• Each individual person will need a different amount of total sleep depending on various factors such as stress, physical strain, etc.

• A good metric of whether or not you are getting enough sleep is whether or not you're sleepy during the daytime or not.

• It's very hard to imagine that you're getting a balance of slow-wave and REM sleep if you're only sleeping four or five hours per night.

Tips for Improving Slow-Wave Sleep

In this section, Dr. Huberman provides tips on how to improve slow-wave sleep.

Dos and Don'ts for Improving Slow-Wave Sleep

• Try various things one by one to see what works best for you.

• Avoid alcohol and caffeine within 8 to 12 hours prior to sleep.

Benefits of the Huberman Lab Podcast Premium Channel

• The premium channel is twofold: it raises support for the standard Huberman Lab podcast channel and funds research done on human beings.

• The Tiny Foundation has generously offered to do a dollar-for-dollar match on all funds raised for research through the premium channel.

• Signing up for the premium channel gives access to all Ask Me Anything sessions, transcripts of AMAs, and various transcripts and protocols of Huberman Lab podcast episodes not found elsewhere.

This transcript does not contain any music or other non-verbal content.