Discuss four ways that you can keep your nervous system healthy.

According to Google, "Watch your eating patterns and make sure to eat semi-regularly so as to not deplete the glucose your neurons use for energy . Eat a balanced diet that includes good levels of B-12 and D vitamins, as well as healthy fats . Avoid smoking and drinking excessive alcohol." So these can be ways.

Hope this can help! :)

answer; planning ahead;