Your sympathetic nervous system is one of the branches of your autonomic nervous system. It controls functions under unconscious control related to “fight or flight.” Your nervous system plays a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The human digestive system is a series of organs that converts food into essential nutrients that ...

The limbic system helps regulate emotional and social processing, as well as learning, motivation, and memory. It consists of structures that lie beneath the outer, wrinkly part of the brain and above ...