I sleep less when I exercise more

They say exercise improves sleep quality. Is that true for me? To test this hypothesis, I took my daily calorie expenditures from the Apple Health app and correlated them with that night’s sleep time. 1 I also included caffeine intake as a potential confounding variable. The hypothesis: when I exercise more, I’ll get better rest that night, and therefore wake up earlier. The results: 2 name coef…