if you live to 90, 32 years will have been spent entirely asleep...
Why do we sleep?
- Restoration - all the stuff that we have burned up during the day, we restore, we replace, we rebuild during the night.
- Energy conservation - you essentially sleep to save calories
- Brain function - brain processing and memory consolidation...
a Lack of sleep creates:
- poor memory
- increased impulsiveness
- poor judgement
- weight gain
- increases stress
And, new neuroscience has also seen a link between sleep disruption and mental illness.
The "Sleep for dummies":
- dark room and slightly cool (reduce your light exposure at least 30 minutes before you go to bed)
- turn off mobiles and computers
- no caffeine in the evening
- wind down
- seek out morning light
Take your sleep seriously;
- decision making
- social skills
- mood changes
- level of anger
- tendency to drink and take drugs
See the talk at TED (where you can see also the transcript) or down below via YouTube: