I would say A, extreme jealousy. That is not a good thing in a relationship and could lead to potential abuse.
I think that a condition which is related to your lifestyle, environment, and or hereditary that can increase the chance of someone developing a heart and blood vessel disease would be Alzheimer's and Dementia.
The answer is Ultraviolet Light
The easiest way for us to obtain a sustainable amount of Vitamin D is by exposing our self to morning sunlight ( which contain ultraviolet light)
Often time, we don't consume enough vitamin D and our body need to get it from our bones, and in order to do that, it need to be activated through enough exposure from sunlght
It can make you develop an eating disorder
