Is mental health the same as physical health?

xIs it?

That is to ask: Should mental health, its manifestations and issues, be considered the same way as we consider a physical body, which is to say, that all mental issues must reduce to physical fact ?

If we can rely upon popular scientific knowledge then the answer is resounding yes!

If this is true, though, if science is finding out true things, then why has mental health issues only expanded and been aggregated with the rise of scientific solution?

If cognition linked with empiricism is as thorough and competent as they propose in practice, then why is everything seemingly going to shit more and more?

Any ideas ?