I often ask myself, why do humans destroy their own bodies and take drugs, eat unhealthy, live small lives, alcohol, party too much, etc...
It's because they're not happy with their own lives. They have to work in a daily job, doing the same things over and over again. Then they come home and don't know what to do. So they smoke, because they're stressed, or they drink coffee to stay awake and to have more time of the day. In the evening they drink alcohol and party, cause they didn't have any action the rest of the Day. When they're drunk, they mock others to feel better themselves. I think, people can do whatever they want with their lives. Even I sometimes am stressed and need some fast energy, but in general I try to stay healthy. I want to be happy and make the Best out of the day, so I go out often. You can go to the gym, but that will only nourish your body and not your mind. When we were children, i guess most of us were happy going out and playing knight with a stick. Why should we even drink coffee or smoke, when it tastes bad and we're Not exhausted. Try to become a child again! You can't? Then at least become a younger (better) version of yourself, or you will regret your whole life in the end, having seen nothing but your backyard and the next bigger city. Travel or at least enjoy nature. Feel the Sun shining in your face and be as happy as you can be.