Illustration. Rotem Teplow

We Spend a Third of Our Lives Sleeping. Why?

Sleeping takes up a third of our lives, but essential mysteries about the process have yet to be unraveled

What a jolt it was the first time someone told us that sleep takes up a third of our life. By the age of 90, we will have spent an accumulated total of about 33 years sleeping. Suddenly sleep seems not so much...

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