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.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .