How does anesthesia work?

Sometimes, doctors use something called anesthesia to help them treat patients. Anesthesia can be different substances, but they all prevent our bodies from feeling pain during a medical treatment or surgery. So how does anesthesia stop us from feeling pain? We asked Dr. Kaveh Hoda to help us find the answer. Got a question that’s topical? Send it to us at BrainsOn.org/contact, and we’ll find a painless answer!