Manage stress by habitually going outside, this was a big one for me to finally get through my thick indoor-hobby loving skull and I'm sure many people who gamed heavily since childhood may also be slow to figure this one. Doesn't even need to be a hobby just find some excuses multiple times a day to get outside 10-15 mins and build habits out of it and make it longer if overcast dark sky. This is really doing a lot for me and I can't imagine going back to my reclusive indoor ways I have even been able to quit taking daily sugar and caffeine because those outside breaks have become energizing to me and is more potent. Important to get outside like this for morning, afternoon, and evening while the sun is up I firmly believe.
Neuroscientists Andrew Huberman and Samer Hattar (and surly others) have explained the benefits much better than I could hope to explain and this is the podcast I heard that made it all click for me, they discuss it together on Huberman Lab #43. Dr. Hattar is a world-renowned expert on how viewing light at particular times adjusts our mood, ability to learn, stress and hormone levels, appetite, and mental health.