It is true, since there really is no way to explain it, look at the picture below.
https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwjbm6jyusLeAhVC2VMKHTHUCnEQjRx6BAgBEAU&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FMyPlate&psig=AOvVaw1MJ9CiEdM-NRdRHxX4N2qV&ust=1541686191832175
I think scientists are so interested with our brains, because our brain could be considered the most powerful thing ever, everything man-made was from our brain. Our brain can literally scare itself to death. I think they are so interested because it is so powerful.
The first step of examination in a pt. with a neurologic condition is to evaluate the mentation of the person.
Do they know who they are?
Do they know the date/time/time frame?
Do they know where they are?
Do they know simple things like 1+1 or 2+2?
Did the lose consciousness?
A. A person can inherit a tendency toward a mental disorder.
In terms of heredity, this would be the best answer. Because heredity refers to biological factors, inherited through genetics of parents and relatives. Not always will that person develop a mental disorder due to a biological relative being diagnosed with a mental disorder, but it is possible and a high risk factor. The death of a loved one, using drugs or alcohol, and being neglected during childhood are more of environmental and psychological factors.
Hope that helps. :)
