why are diseases always negative? Are there diseases that have positive effects on human beings?
In: Biology
I want to add something: your body is a very complex system. It has to be how it is, for it to work. Changing it means it isn’t working. Of course there’s all sorts of changes that fit within that complex system, like you going for a walk, or reading a book. But if there is a change that it can’t deal with, that changes that balance, it’s bad.
Imagine a see-saw that’s perfectly balanced. Your question could be sort of like asking “why do all dumbbells dropped on this see-saw disturb its balance? can’t some dumbbells help it balance?”
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