Secondly, varying what you do helps

Secondly, varying what you do helps to break up the monotony of life and keep your mental battery charged. Even if you really love one type of activity, it is easy to burn yourself out if you pursue it to the exclusion of other things. For example, my friend is a swim instructor and loves doing physical activities. On top of his job, he also goes to the gym 5 times a week. Recently, he started adding rock climbing to his weekly schedule. This turned out to be way too much physical activity for him—on one level, he wasn’t giving his body enough time to recover, but on another, more important level, he also wasn’t giving his mind enough time to recover. Without even realizing it, he was getting sick of the constant physical activity and even began to get a little depressed. He cut down on his gym time and started reading instead, and almost instantly he felt more invigorated. Variety is important to keep you from burning out on life.