your genetics can predispose you to these types of things like you can look like one of your parents or even someone far back in your family history so you can inherit there genetic makeup. It is a chemical imbalance in both cases and can be treated. the label real does not matter the treatment of the symptom is the most important thing. take care good luck
Life changing events can cause either. Often in a life changing event it takes six months to settle into the change. If not an adjustment disorder occurs which can lead to clinical depression.
Depression is not a simple topic as it can be organic, or caused by life stressors. (Reactive).
Dysthemia is just a general feeling of being down, whereas depression is acute and has sometimes debilitating symptoms.
Both can be organic (chemical) both can be due to life events.