First of all, for a better life.
A better life here is not fitness but money. Have you ever had such an experience? When I want to hold a bucket of water upstairs, my wrist hurts unbearable. When I want to run on a whim, I find that my physical strength can't keep up with my age. When you want to give your other half a princess hug, you find that both of them are embarrassed. Although fitness is not a magical exercise, it will really make you live a better life.
Second, daily progress.
If you are a little stingy, fitness is actually a project that returns with your investment, and compared with other sports, such as basketball, badminton, football and so on. The probability of injury in fitness is smaller. If you insist on fitness, you can feel your progress and change every year, every month, every week and even every day. For example, you can only do five push-ups today, six tomorrow and 20 next month.
Third, habits
In fact, the reason why more bodybuilders insist on fitness after completing the original fitness purpose is because of habit. For them, fitness is as common as eating and drinking water, and it has become a living habit, without the enthusiasm when they first started fitness. They go to the gym seven times a week, and now they may go to the gym two or three times a week, keeping 1 hour every time.
As for how much you invest in fitness, it's up to you. Everyone has different fitness purposes and different economic conditions. If you have money, please go to a better fitness instructor. If you don't want to, go online to study or pay attention to the next fitness APP. In fact, it doesn't matter how much you invest. The key is whether you can persist.
Last question: Do you think fitness is worth your life? Why?