I think its thru blood cells im not sure though.
The correct answer is Dysthymic disorder, it’s definition is basically mild depression.
The other answer is far from being right, bipolar is not at all mind. Neither are any of the other answers listed
Abiotic are the nonliving things in an ecosystem such as climate and soil type.
I believe the answer your looking for is the "frontal" lobe, though this is if you just want the lobe of the brain. The frontal lobe is responsible for giving the traits that define our personality and who we are are. If you want to be specific though it is, I think the "Amydalga" is the more specific answer