Can caffeine make up for a lack of sleep?

Caffeine can certainly mask the effects of sleep deprivation by waking you up, but you still need real sleep to refresh your mind and body. In this video, sleep expert Michael Breus, PhD, explains why caffeine cannot make up for a lack of sleep.

Muddled thinking, poor reflexes (don’t get behind the wheel!), memory problems—and that’s the short list.

You probably knew about the effects of having caffeine late in the day. But what about these other causes of sleeplessness?

Here’s how to use everyday cleaners safely and correctly to ward off germs.

Learn the basics of this public health tool and how it helped officials monitor and control the COVID pandemic.

Too much screen time can harm sleep, mood, and much more.