Based on this older study (For Your Brain’s Sake, Keep Moving – The New York Times), it seems like running helps the brain grow better. It’s a good read. It may also explain, at least in part, why people’s brains are not doing so great lately with the lockdown due to the pandemic.
We rightly attribute running to helping our muscles and our cardiovascular system. It seems to help our nervous system as well. Try to get out and move if you can.