I think that the most basic thing to take care of our health is healthy eating, it is the most important thing. Regardless of whether you exercise or not, you have to eat well, balanced.
But it happens that we also do activities in our jobs that are detrimental to our health, especially in the long term, so it is best to be attentive to always take care of ourselves. If we are going to live, the best thing is to be healthy.