Despair in the winter months can point to a serious condition. Experts recommend light boxes, earlier wake-up times and therapy.
Men at risk for diabetes had greater blood sugar control and lost more belly fat when they exercised in the afternoon than in the morning.
Scientists wondered whether animals living above the Arctic Circle had the same circadian rhythms as the rest of us.
Early risers did the equivalent of walking 20 to 30 minutes more each day compared to “evening types,” who tend to stay up late.
Sunlight is not a cure for coronavirus, but it does have other benefits for mind and body.
Here’s what you need to know about the pros and cons of using melatonin supplements for sleeping difficulties.