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I'll give you one small example. I started using a sleep tracking app on my iPhone because I have bad onset insomnia and don't sleep well. After one weeks use I noticed that the nights I went for a short 20 min walk before bed I had a much better sleep score. I also fell asleep faster. Another thing I noticed was that I feel asleep faster if I didn't listen to music or podcasts. I've listened to them for years thinki…
IMHO, you don't need personalized data for this kind of stuff. More seriously, there's plenty of literature out there about these things; spend 5 minutes on Google and you'll find all of these recommendations. You'll know that exercising will help you sleep. You'll read as well that screens tend to disturb our sleeping patterns. These are becoming common sense and shouldn't require you to run you own little experimen…
- Exercise more, - Eat more healthy (less carbs/sugar/processed food, more vegetables and regular meat/fish/eggs...), - Sleep more, - Drink less.
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And as an insomniac I was having trouble with 'sleep more'. People with worse insomnia than me have to go sleep clinics to work out how to improve their situation. Mine wasn't bad enough to warrant that but fortunately there was an app to allow me to do a little of my own research. Without it I wouldn't be able to tell the time it took me to fall asleep - as I would be asleep.