Russell Foster: Why do we sleep?

The video explores the neuroscience of sleep, emphasizing its importance and the consequences of sleep deprivation. It discusses historical perspectives, the brain's role in sleep, and various theories on why we sleep. The video also highlights the impact of sleep deprivation on health and mental well-being, offering tips for improving sleep and debunking common myths. Finally, it examines the connection between sleep disruption and mental health, suggesting new therapeutic targets.

What percentage of our lives do we typically spend sleeping?

• 60%

• 50%

• 36%

• 25%

Which historical figure described sleep as a 'criminal waste of time'?

• William Shakespeare

• Margaret Thatcher

• Thomas Dekker

• Thomas Edison

Which part of the brain is involved in regulating sleep and wakefulness?

• Hippocampus

• Hypothalamus

• Amygdala

• Cerebellum

What is one of the main theories explaining why we sleep?

• To enhance vision

• To conserve energy

• To increase appetite

• To improve digestion

How much sleep do teenagers need for optimal brain performance?

• 5 hours

• 6 hours

• 9 hours

• 7 hours

What is a common consequence of sleep deprivation?

• Increased creativity

• Enhanced focus

• Poor judgment

• Improved memory

What hormone is associated with increased hunger due to sleep loss?

• Insulin

• Ghrelin

• Cortisol

• Leptin

What is a common myth about sleep needs in older adults?

• They sleep more deeply

• They have no sleep needs

• They need less sleep

• They need more sleep

What is the relationship between sleep and mental health?

• They are unrelated

• They are inversely related

• They are only linked in children

• They are physically linked

What can sleep disruption potentially exacerbate?

• Social skills

• Dietary habits

• Physical fitness

• Mental illness