The heart-damaging chemical found in the blood that's associated with long-term depression is a. neurotransmitters. b. homocysteine. c. endorphins. d. adrenaline.
The answer is letter b. homocysteine. It can lead to coronary artery disease if there are high levels of it in the body. It is also connected with the formation of blood clots that could lead to a stroke or heart attack.