Exercising and good recovery will almost always increase your lifespan and quality of life.

snakedye

Investment is what you do with your time; It's where, when and how you build your capital; It determines what kind of capital you accumulate. If you invest all your time feeding the bottomless pit that is your physical desires rather than building capital, you will end up with nothing.

It is also not wise to invest in only one kind of capital. When and how much to build each form of capital is where wisdom is required.

This link describes several types of capital. https://www.indeed.com/career-advice/career-development/types-of-capitals

Brunswick

bitcoin

Which is the best investment?

Physical and spiritual health are most important,  but you can't buy that or invest in it. No amount of money, exercise or meditation can assure good health.