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Chris Hadfield
Retired Canadian Astronaut & Author
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New blood test can tell if you're naturally a night owl or an early bird

Getting a good night's sleep just took on a whole new meaning.

Abdelrahman Hassanein via Unsplash
  • A new study introduces a new method for determining your personal circadian rhythm.
  • This could have profound effects on combating cognitive disorders and helping patients understand when to take medicine.
  • The blood test measures a person's biological clock to within 1.5 hours.
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Scientists finally know why sleep deprivation leads to mental sluggishness

Scientists didn’t know why the sleep deprived experienced cognitive lapses, until now.

Few things are worse for your health than long-term sleep deprivation. The sleep deprived have a higher risk of quite a number of conditions including heart disease, hypertension, type 2 diabetes, obesity, and depression. Lack of sleep also has a deleterious effect on the brain, particularly on memory and cognition.

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