What Is Sleepwalking (Somnambulism)?

What Is Sleepwalking (Somnambulism)?

Sleepwalking, also known as somnambulism or noctambulism, is the combined phenomena of sleeping and wakefulness. Sleepwalking — also known as somnambulism — involves getting up and walking while being in a drowsy state. Sleepwalking, also … Read more

What Is Fatal Insomnia? 1

What Is Fatal Insomnia?

For a rare group of people, a scary disease called fatal familial insomnia (FFI), sleep deprivation can be fatal. When we lie awake chasing feverish thoughts, our thoughts slow down and tick off the passing … Read more

What Is Rem Sleep? 2

What Is Rem Sleep?

Rem sleep is characterized by rapid eye movements and closed eyelids. Today we report that the brain can be as active during sleep as it is when awake, and dreams are most vivid during sleep. … Read more

What Is Circadian Rhythm? 3

What Is Circadian Rhythm?

One of the most important and well-known circadian rhythms in the human body is the sleep-wake cycle. A circadian rhythm is a 24-hour cycle that is part of the body’s internal clock and runs in … Read more

What Is Narcolepsy? 4

What Is Narcolepsy?

Narcolepsy is a genetic disorder caused by a combination of neuropeptides known as hypocretin and orexin in a part of the brain called the hypothalamus. The main feature of narcolepsy is excessive and overwhelming sleepiness … Read more

What Is Melatonin? 5

What Is Melatonin?

Melatonin is a hormone produced primarily by the hypothalamus, a pea-sized gland located in the middle of the human brain. While some people consider melatonin a sleeping pill, it doesn’t work that way. Darkness triggers … Read more