Number one by far - less stress. Going from college to having a high paying job reduced my stress quite a bit. As well as then getting a significant other. I've

Number one by far - less stress. Going from college to having a high paying job reduced my stress quite a bit. As well as then getting a significant other. I've since gained weight and look relatively normal in comparison to my skeleton-like appearance in the past along with my constant lack of sleep. Outside of that - removing caffeine has had a substantial effect as well. I used to drink caffeinated diet soda even up to bed time before. It didn't always keep me awake or have much effect but removing it made it clear that it improved my sleep to some degree. But more importantly - it made it easier for me to get out of bed in the morning. When I get up in the morning - it doesn't take me an hour to just boot up. I'm usually more "awake" immediately and I think I can attribute that to little to no caffeine intake. I do think things like good diet and exercise and other such stuff does help too. But less stress and no caffeine have been very noticeable improvements. I avoid caffeinated drinks now as much as possible. It does mean getting that caffeine free soda is pretty difficult but it can be done!