https://www.youtube.com/watch?v=02ZYZ8j2Q60

OUTLIVE — SLEEP

Chapter 16: The Awakening

1. Why sleep is so important

Attia explains that sleep is not wasted time or simply a period when the brain switches off.

Sleep is fundamental to:

• Physical recovery and performance.

• Cognitive performance, memory and learning.

• Emotional regulation and mental health.

• Metabolic health.

• Cardiovascular health.

• Long-term brain health and protection against neurodegenerative disease.

He emphasizes that sleep is as important to health as exercise and nutrition.

He also explains that even one night of poor sleep can affect physical and cognitive performance.

His discussion highlights two important sleep stages: