Exercise reduces fatigue ... but moderate exercise does better than strenuous exercise.
Staying in school makes you live longer, even just the difference between 7th grade and 8th grade, and the effect doesn't stop if you go later in life.
Daylight savings time may make you sick.
Being unemployed makes people depressed. Which reminds me, the article/book I wanted to write on "Zen and the art of unemployment" is still needed, as a lot of the book was about managing the depression that comes with being out of work.
And ... Do not eat dumpster cheese.