The clinical term for a "blood clot". This is when one could travel to the brain, lungs, or other area and cause a disruption in blood flow

I believe it would be called an embolus.
When a Thrombus(Blood clot) breaks loose and travels from one location to another

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.

It would be answer choice b (1975)