Word of the Day: Brainstem

This blog post is archived and is no longer being updated. For the latest content, please visit the main Drugs & Health Blog page.
A diagram of the brain anatomy, highlighting the location of the brainstem. The brainstem is located between the brain and the spinal cord.

Our bodies can do lots of things without us even thinking about it. And that’s what the Word of the Day is about. The brainstem, not surprisingly, is a “stem” that connects the brain to the spinal cord. Its basic functions include directing heart rate, breathing, arousal, and sleeping. Lucky for us, the brainstem does all these things automatically. That’s why you don’t forget to breathe when you’re asleep!

How? The brainstem directs the spinal cord, other parts of the brain, and the body to do what is necessary to maintain our life.

The brainstem is one of the more primitive parts of our brain—it dates back to the age of the dinosaurs! Just like another primitive part of our brain, the limbic system. One of the reasons that addictive drugs exert such powerful control over our behavior is that they act directly on our primitive brainstem and limbic system.

For more brainy words, check out the NIDA for Teens glossary that fuels SBB’s words of the day.

Want to learn more? Check out the blog post “Teen Brain, a Work in Progress.

Find Help Near You

Use the SAMHSA Treatment Locator to find substance use or other mental health services in your area. If you are in an emergency situation, this toll-free, 24-hour hotline can help you get through this difficult time: call 1-800-273-TALK, or visit the Suicide Prevention Lifeline. We also have step by step guides on what to do to help yourself, a friend or a family member.

Related Articles

Say What? “Relapse”
July 2018

A person who's trying to stop using drugs can sometimes start using them again. Fortunately, treatment can help to lower...