Sleep Archive

Links between restless legs and iron, caffeine, and alcohol are emerging. See which dietary tweaks might be worth trying.

Sudden gasps for air at night can be alarming. Explore how allergies, blocked airways, or more serious sleep and heart problems might be involved.

Persistent snoring may point to more than noisy sleep. Learn what might be behind it and which fixes to consider.

Sleep architecture is the pattern and sequence of sleep cycles and stages. People cycle through four to six periods of light and deep sleep each night. Aging, stress, illness, and alcohol consumption can influence people’s sleep architecture.

Sudden spells where the world flips and blurs can be alarming. Explore possible causes, from inner ear issues to your nighttime sleep supplement.

Type 2 diabetes and sleep apnea often occur together, especially in people with extra weight. Learn how one condition may influence the other.

Cognitive behavioral therapy for insomnia (CBT-i) identifies and challenges thoughts about sleep that make it more difficult, eradicates bedroom activities other than sleep and sex, limits the time spent in bed to increase the drive to sleep, and teaches relaxation techniques.

Research suggests that exercise is beneficial in managing insomnia, but current guidelines don't specify which types may be most effective. A 2025 study found that yoga, tai chi, walking, and running were associated with reduced symptoms of insomnia.

A sleep study is performed to detect sleep apnea or other sleep disorders. It often takes place in a special lab. The person is hooked up to equipment that records the brain's activity and monitors snoring, blood oxygen levels, and other variables.