I'am interested in human brain growth and have some doubts.
Suppose there are two identical persons. The first person in teenage years (14-20) diligently studied maths and physics, and the other person didn't.
1. What are the differences in their brains structure?
2. If second person would start learn maths and physics in adult years (>23), is she able to fill the gap and develop her brain to the same state?
3. Does adult human brain creates new synapses while learning, escpecially mathematics, physics and logic? I thought that their level falls from 4th year of age.
4. (If answer at question 3 is "yes") In adult ages the myelining process is finished, so won't new synapses have myelin sheath?