Sleep duration of five hours or less was associated with double the risk of dementia in older adults. Sleep disruptions also increased death risk in those in their seventies.
Three consecutive nights of sleep loss can have a negative impact on both mental and physical health. Sleep deprivation can lead to an increase in anger, frustration, and anxiety. Additionally, those who experienced sleep loss reported a change in physical wellbeing, including gastrointestinal and respiratory problems.
Daydreaming and mind-wandering appear to occur when parts of the brain fall asleep while other areas remain awake.
New mothers who sleep less than seven hours a night six months after giving birth had an increase in biological age of between three to seven years compared to new moms who slept for seven or more hours.
Reductions in reaction time, memory, and other neuropsychological problems persist for at least seven days following a ten-day period of insufficient sleep.
Increasing ambient temperatures has a negative impact on sleep duration, researchers report.