All posts by Dr. Nikola Djordjevic, MD

I'm a board-certified family physician, co-founder and project manager of MedAlertHelp.org. I also serve as a medical advisor for the wonderful authors at DisturbMeNot. We work together on providing you with the latest and most accurate information regarding sleep health and beyond.

How and Why Sleep Evolved

Sleep. We all need it, and most of us don’t get enough of it. And even if we get the average recommended amount (the good old 8-hour dosage), that takes up about a third of our lives overall.

But why do we sleep, from an evolutionary standpoint? The fact that it’s so widespread in the animal kingdom attests to it having some kind of vital function. But it just seems like a waste of 8 hours, more or less.

Continue reading How and Why Sleep Evolved