Understanding does help. Perhaps you don't see that because you don't understand?
I always thought it was really stupid for people to memorize and practice multiplication tables when none of that is necessary with a little simple understanding.
Yet we still don't address the MAIN problem with [credit] cards [at least in the USA]- the lack of confidential PIN codes to secure them from unauthorized use- and all us consumers are paying for that. At least I have noticed gas pumps and some other devices asking me for my zip code.... better than nothing I suppose.
Hate those stupid gas pumps. Useless if your card is from outside the US.
As well, stop religiously spouting stupidities without any understanding of what you are saying. Be careful, you're showing your ignorant bias.
Also, heritable? Science doesn't even know what that means.
Sometimes I think psychiatrists prescribe drugs simply because they know that the majority of people are too lazy to change the way they eat, sleep, and interact with the world and the US mindset of 'it's not my fault, let's blame it on X'.
Taking a pill isn't a cure for having no control over your thoughts. The problem is still there, you're just hiding the symptoms. Perhaps, maybe, just maybe, those thoughts are a direct result of what YOU are doing with your life.