>>81795532
>>81795556
>>81795630
Some mental conditions are thought to be caused by a combination of life events and a genetic disposition.

E.g. pic related. D is genetic disposition, and S is stresses in your life. If the cup overflows then you lose your temper with life. Two people could have the same stresses, but if one person has a greater genetic disposition towards anxiety, then they will be more anxious, despite both people having the same stresses.

>genetic differences account for about 43% of variance in panic disorder and 28% in generalized anxiety disorder
https://en.wikipedia.org/wiki/Anxiety#Genetics