I encourage you to lift weights. It's a different type of stress that your body is more inclined to deal with in a positive fashion; this translates to your moo

I encourage you to lift weights. It's a different type of stress that your body is more inclined to deal with in a positive fashion; this translates to your mood positively. Test getting more sleep to see what happens—doesn't hurt to test! I have a friend who requires 9 hours a day to feel fully rested. I neglected to mention diet previously, but make sure you regulate your calories and macro-nutrients, and take a multi-vitamin (I take Optimum Nutrition's Opti-Men) and a fish oil (I take Minami's MorEPA). With supplements, you get what you pay for; if your multi-vitamin serving is only one pill, it's probably not a very high quality. You don't have to go on a "diet" really, but keep track of what goes into your body and over time you'll get a bearing for what makes you feel best—added bonus is that the act of tracking nutrition typically causes people to eat a bit healthier. Sounds like your diet isn't bad though. Mentally, I approach a "bad day" by taking a step back (sometimes literally) and telling myself the chemicals in my body are a bit off. A vast majority of the time, this is enough to calm down the dissonance in my head that can lead to lethargic or aggressive behaviors. Sometimes it's because I need to eat or hydrate; other times a 15-30 minute walk 'resets' me mentally. Worth noting: a poor night's sleep can affect me personally for 2-3 days afterward. Sometimes I feel perfect the day after, only to feel a massive drop in energy the next. It's amazing how powerful acknowledging cognitive dissonance is for eliminating said dissonance. Finally, there's also the possibility you are carrying a disease or disorder you're unaware of. I personally have an auto-immune disease which caused me to feel very lethargic in spite of being athletic and having a clean diet and sleep schedule. As soon as I got my thyroid in check (hypothyroidism, or 'Hashimoto's Thyroiditis'), the lethargic spurts dissipated.