Archive for matthew walker

I had no idea I was doing something on a daily (well, nightly) basis that was so damaging to my health: Not getting enough sleep.

I thought, like many people, that because I always woke up before the alarm went off, I was getting enough sleep. Usually it was 6-6.5 hours.

According to Matthew Walker, author of Why We Sleep, the research says that’s not enough. If you get less than 7-9 hours of sleep every night, you are endangering your health.

After even one night of less than 5 hours of sleep, natural killer cells (which kill cancer cells that appear in your body every day) drop by 70%. Just one night!

And routinely sleeping less than 6 or 7 hours a night increases your risk of cancer by 50%. And, “based on epidemiological data, any adult sleeping and average of 6.75 hours a night would be predicted to live only into their early sixties….” (p. 262). In an interview on NPR with Terry Gross, Walker said, “We also know that every disease that is killing us in developed nations has causal and significant links to a lack of sleep. And a lack of sleep defined as six hours of sleep or less.”

Yikes! Read More→

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