I was skinny 140lbs (5'10) and 20% body fat, slept 10 hours a day and still felt tired. Started running 10km every 2 days for 3 months, then stopped running and hit the gym to gain mass, every 3 days for an hour each with a heavy weight low rep routine. Cut my diet to only protein and veg 5 meals a day, not fruit or dairy and the only carb i'd eat was a small bowl of brown rice every day. after 4 months I weighed 172lbs with 7% body fat, slept 5 hours a day and would be energized for the entire day.... then I came to China and started partying and stopped working out, now i'm back down to 140lbs and 24% body fat >
