No doubt you've heard about the importance of proper sleep to the point of redundancy. Weight gain, performance loss and irritability are among the many effects we worry about when we don't get enough ...

Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory consolidation Disorders: ...

You may remember little to nothing when you wake up, but there’s a lot going on while you sleep. You just spent the previous seven to nine hours moving through a highly structured cycle of sleep ...

When you picture the ideal night of sleep, what comes to mind? For many people, it’s (at least) eight blissful hours of uninterrupted snoozing. There’s no sound of snoring in your ear. No ...

Sleep is kind of a big deal. It’s the best way for our bodies to recover after a hard day, and it also greatly influences our cognitive functions and immune responses. Yet while many of us focus on ...

Hormones like testosterone, cortisol, melatonin, and more directly influence men’s mood, energy, and sleep quality. Hormonal ...

Inadequate sleep can have negative downstream effects on everyday cognitive functioning and mental health, which can then ...

Exhausted and surviving on strong coffee? A sleep expert shares the scientific reasons you’re more likely to feel wired at this time of year.