31 Aug

Interesting Facts About Sleep


Some you may know, others may surprise you

It’s a known fact that humans spend 1/3 of their life sleeping and yet the value of sleep quality and quantity is often not considered in our day to day lives. When last did your doctor/ physician/health practitioner ask about your sleep?

Here are some interesting facts about sleep:

  • A study found that 12% of people dream entirely in black and white
  • The record for the longest period without sleep is 11 days – this was set by a Californian student named Randy Gardner in 1964
  • It’s not uncommon for deaf people to use sign language in their sleep
  • It’s thought that up to 15% of the population are sleepwalkers
  • 1 in 4 married couples sleep in separate beds
  • Sleep deprivation will kill you more quickly than food deprivation
  • Amnesty International lists sleep deprivation as a form of torture
  • Within 5 minutes of waking up, 50% of your dream is forgotten
  • Tolerance for pain is reduced by sleep deprivation
  • High earners (R1, 000,000.00 pa) get the best sleep
  • Snoring is a primary cause of sleep disruption
  • People can take cat naps with their eyes open without even knowing it
  • People who don’t get enough sleep are more likely to eat more because of their leptin levels (appetite-regulating hormone) dropping, promoting appetite increase

And in the animal kingdom

  • Scientists don’t know if animals dream during REM sleep, as humans do
  • Two thirds of a cat’s life is spent asleep
  • A giraffe only needs 1.9 hours of sleep a day, whereas a brown bat needs 19.9 hours a day
  • Otter families hold hands whilst sleeping to avoid drifting apart

Sleep is important to our health and general well-being and lack of sleep or poor quality of sleep can have serious medical and social implications.

If sleep is a concern, always consult a medical practitioner.

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