On average, how many hours do you sleep each night? For most healthy adults, guidelines suggest at least seven hours of slumber. But these are general recommendations and not strict rules. “Some people need less than seven hours, while others might need more,” says Eric Zhou with the Division of Sleep Medicine at Harvard Medical…
Month: October 2023
Kidneys, eyes, ears, and more: Why do we have a spare?
One of the many underappreciated things about the human body is that it has a lot of excess capacity. That is, our organs have more reserve than most of us will ever need. It’s as if our bodies were designed with the idea that we might need backups in case of illness or injury. And…