Final answer:
Prayer and meditation can promote neurogenesis, the birth of new neurons, in the brain. Exercise and some antidepressant medications are known to promote neurogenesis in the hippocampus, while stress inhibits neurogenesis.
Step-by-step explanation:
Prayer and meditation can have an impact on neurons and the nervous system. Research has shown that both prayer and meditation can promote neurogenesis, which is the birth of new neurons. For example, exercise and some antidepressant medications have been found to promote neurogenesis in the hippocampus, a brain structure involved in learning and memory. On the other hand, stress can have the opposite effect and inhibit neurogenesis. Therefore, engaging in prayer and meditation practices may have positive effects on the brain and the nervous system.