Cancer cells often are missing chromosomes. how could loss of chromosomes result in cancer?

Chromosal abnormalities can also cause miscarriage diseases or problems in growth or development .The most common type of chromosal abnormality is known as aneuploidy abnormal chromosal. ( i don't know this is absolutely right or wrong but this is my own knowledge )

age might have something to do with behavior depending on the age because not everyone who is the same age acts the same like 2 year olds could have bad behavior but some won't.

i hope this : )

you would need to check her bp before and after her activity.