Why Do We Have to Sleep

The video explores the mystery and importance of sleep, highlighting its biological mechanisms and the impact of artificial light on sleep cycles. It discusses the purpose and evolution of sleep, noting that while sleep is essential for life, its exact role remains unclear. The video also provides resources for further learning about sleep science.

What are the two competing networks that control human sleep patterns?

What role does melatonin play in sleep regulation?

How does artificial light affect our sleep cycle?

Describe the concept of 'first and second sleep' as mentioned in the text.

What are some potential consequences of chronic sleep deprivation?

What are some theories regarding the purpose of sleep?

How do dolphins manage their sleep without drowning?