Young Girls Outside At The Pool Doing Physical Exercises

In mice, exercise improves cognitive functioning via improvement of hippocampus-dependent spatial learning, and enhancement of synaptic plasticity and neurogenesis. In addition, physical activity has been shown to be neuroprotective in many neurodegenerative and neuromuscular diseases. For instance, it reduces the risk of developing dementia. Furthermore, anecdotal evidence suggests that frequent exercise may reverse alcohol-induced brain damage.
There are several possibilities for why exercise is beneficial for the brain. Examples are as follows:
increasing the blood and oxygen flow to the brain
increasing growth factors that help create new nerve cells and promote synaptic plasticity