Quote
“Sleep is not the end of today it’s the beginning of tomorrow.”
Conclusion
- an adult need 7-9 hours of sleep
 - sleep between 10 - 12 pm
 - wake up between 6-8 AM
 - As soon as you woke up you should get the light exposure
 - you should have a consistent sleep pattern.
 - count the times in 90 minutes cycles
 - sleep quality is more important than the number of hours you sleep
 - might be better to have 2-4 PM nap ( I can’t cuz of shift work)
 - avoid screen time before bed (min:30, good 1hr, ideal 2+ ).
 - use greyscale on screens if you must use
 
How I adopt these information to my life
- for me I decide I need 7:30 hours of sleep
 - for me I can sleep 11 - 12
 - I can wake up 6:30 AM - 7:30
 - as soon as I wakeup I will get the brush and go outside
 
avoid screen time before bed
Better evening alternatives:
- Reading physical books
 - Gentle stretching or meditation
 - Listening to music or podcasts
 - Light household tasks
 - Journaling
 - Taking a warm bath
 
Evidence
- 
15min of more sleep can get you from a ‘B’ student to an ‘A’ student
 - 
you can even make bets
 - 
habits changes everything https://youtu.be/fybq6V74qRk?t=1262