An anthropological study of modern hunter-gatherers in Tanzania suggests that the difference in sleep schedules may be an age-old survival mechanism. The team observed daily lives of a modern hunter-gatherer community of the Hadza people in Northern Tanzania. After a day of procuring food, the Hadza, the young and old alike, gather to sleep in […]
Tag: circadian rhythm
Irregular mealtimes reset one of our biological body clocks
One of the major biological cycles of the human body is influenced by mealtimes, a new study suggests. The human body runs on a roughly 24-hour cycle, controlled by a “master” clock in the brain and peripheral clocks in other parts of the body, which are synchronized with external cues, including light and food intake. […]
For better sleep, spend more time in the sun – even in the winter
Shorter days and cooler temperatures prevent us from spending as much time outdoors in the winter than we do in the summer. But new research suggests that better sleep in the winter requires spending more time outside. Recent data suggest that, thanks to our modern lifestyles, our light exposure in the winter is reduced by […]
