How can a psychological factor like stress cause so many physical problems like heart diseases, high blood pressure, stomach pain and so on?

Question

Generally curious..

In: Biology

Answer 1

Sorry, I need to ask to clarify and put in simpler terms of what people are saying:

So the “stress” or pain in my chest area is not just me imagining it, but a physical reaction? (I don’t have high blood pressure and heart diseases, yet.)

Ex. When I feel hurt emotionally/breakup, my heart hurts literally.
Ex. When I procrastinate and can’t focus on finishing schoolwork, I feel a clenching feeling in my chest.