why daylight matters but rarely tracked

Daylight helps set your body clock, telling your body when to wake and when to rest.
Getting outside during the day supports alertness, mood, and better sleep at night.
A little time outdoors can make a meaningful difference to your daily rhythm.
Wearables focus too much on sleep and exercise but not really the drivers behind those.

Hence, we started our first Looove feature from daylight diary:

https://looovehealth.com/UV/
Try it out! Let me know how I could improve :)