How do migraines affect the sleep cycle?

Adults and children with migraines may get less quality, REM sleep time than people who don’t have migraines. That’s according to a meta-analysis. Children with migraines were also found to get less total sleep time than their healthy peers but took less time to fall asleep. Source

Potential indicator for obesity risk detected during sleep

Researchers have shown that people with inflexible metabolisms burn less fat at night than those with flexible metabolism. The team measured the respiratory quotient throughout the night and found that despite equal ages, BMIs, and amount of fat, people with inflexible metabolisms burned more carbohydrates and less fat than did people with flexible metabolisms. The higher sleep-time quotient could be a previously unknown indicator for the risk of future metabolic disease. Source

Study explores why asthma worsens at night

For hundreds of years, people have observed that asthma severity often worsens in the nighttime. One longstanding question has been to what degree the body’s internal circadian clock — as opposed to behaviors, such as sleep and physical activities — contributes to worsening of asthma severity. Source

Brain refreshing: Why the dreaming phase matters

Researchers have found that blood flow in the brain capillaries, which is important for oxygen/nutrient delivery and waste removal, was increased during rapid eye movement sleep in mice. Adenosine A2a receptors might be at least partially responsible for this increased blood flow. These findings bring new hope for understanding the function of sleep and developing treatments for neurodegenerative diseases that involve the buildup of waste products in the brain, such as Alzheimer’s disease. Source