Waking up tired or wired? Your circadian rhythm could be off. Reset your internal clock with science-backed habits for deeper ...

Sunlight plays a huge role in our energy levels and sleep quality. One study found that those who got enough morning sunlight ...

A vast majority of Americans wake up regularly during the night, according to a U.S. News survey. Sleep expert Wendy Troxel ...

One of the most striking features of our world is the continuous cycle of day and night. Almost all living organisms, ...

If you're experiencing cortisol addiction (or frequently seeking pressure for the associated energy burst), your cortisol ...

Part of cortisol's impact is mediating the stress response — that fight-or-flight instinct that allows you to deal with ...

We can't talk about morning sunlight and improved sleep hygiene without first addressing our circadian rhythm. This is the ...

"As part of the circadian rhythm (which regulates sleep-wake cycles among other things), the body's core temperature naturally decreases at night, signaling that it's time to sleep," she said.

I love that I get to reset my circadian rhythm, too! Your circadian rhythm is basically your body's internal clock that ...

Another key psychological mechanism contributing to sleep procrastination is delay discounting; the favouring of immediate ...