That might seem like an evolutionary disadvantage, given sleep leaves us immobile and potentially vulnerable to attacks for ...

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

If you often feel low on energy, one of the first things you should ask yourself is how much sleep you're getting. Good sleep ...

For instance, teenagers need more sleep than adults, due to their physical development. Once you’re over the age of eighteen, experts say the average person needs seven hours of sleep every 24 ...

Chances are, if you’re reading this, you got some sleep last night. But are you feeling rested? Experts say it’s an important ...

Healthy sleep includes multiple components, such as number of hours of sleep per night, how long it takes to fall asleep, daytime functioning and self-reported sleep satisfaction, and addressing these ...

Social media has a name for this — cortisol addiction. "The concept of cortisol addiction has gained a lot of attention on ...

For a good night of sleep, consider getting your circadian rhythm back in sync with the sun. Here’s how to do it.

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

If you regularly wake up from seven or eight hours of sleep still feeling tired, your instinct might be to start aiming for nine or even 10 hours a night — but that move might not solve the problem.

Sleep deprivation affects many ... “We tend to prioritize social media over sleep,” Chang said. Chang also cited the long commute and heavy traffic. “Imagine a worker who needs to wake up early for a ...