What’s the difference between "feeling down or depressed" and having depression

I don't think there is a difference they are the same thing

Explanation:

bc it both involves depression and he felling!

Feeling down or depressed is when you experience sadness like any other person and once you are done you move on in your life.

Depression is a disorder that is almost like a black cloud over you and you don't move on from that sadness you stay stuck in that place and you experience seclusion, loss of interest, et cetera. Here is the dictionary definition of Depression:

feelings of severe despondency and dejection.

And Sadness is:

feeling or showing sorrow; unhappy

Explanation:

The main difference in these two definitions is the way in which they are described, depression is much more severe than sadness.

answer; i believe that the correct answer is (b) is a factor associated with physical activity and heart disease;