It's Wolff Law
Developed by Julius Wolff in the 19th Century, it stated that the bones in a healthy person will adapt to the loads under which it's placed. That's mean the greater the stress that they experience on their bones, the stronger their bones become
Answer:
Yes its true, most probably it could be due to damage of frontal lobe that's why Zack is total changed by his thinking, emotional expressions and language. As he was fun loving and carefree personality but now he is more critical and for little reason he yells at his children.
Explanation:
Frontal lobe is the brain part which is responsible for the control of cognitive skills in humans like memory, emotional expression, language, sexual behaviors, judgement, and problem solving.
So, Zack personality changes due to damage of frontal lobe of his brain's cortex.
I believe the answer to your question is oligodendrocytes.
