Jul 29, 2025 · Symptoms Common anxiety signs and symptoms include: Feeling nervous, restless or tense. Having a sense of impending danger, panic or doom. Having an increased heart rate. …

Dec 13, 2024 · Overview Autoimmune encephalitis (en-sef-uh-LIE-tis) is a group of conditions that causes swelling in the brain. This happens because the immune system mistakenly attacks brain …

Apr 26, 2023 · Nervous breakdown isn't a medical term. It most often means a mental health crisis that affects your ability to meet your own needs and do daily tasks.

Dec 20, 2024 · Feeling nervous or anxious about public speaking is common, but it also can be motivating. Fear of public speaking is a form of performance anxiety, along with stage fright and test …

Nov 1, 2024 · In multiple sclerosis, the protective coating on nerve fibers, known as myelin, in the central nervous system is damaged. Depending on the location of the damage in the central nervous …

Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.

Oct 14, 2025 · Epilepsy is a brain condition that causes recurring seizures. There are many types of epilepsy. In some people, the cause can be found. In others, the cause is not known. Epilepsy also is …

Oct 11, 2024 · Overview Irritable bowel syndrome (IBS) is a common condition that affects the stomach and intestines, also called the gastrointestinal tract. Symptoms include cramping, belly pain, bloating, …

May 10, 2022 · Causes The cause of complex regional pain syndrome (CRPS) isn't completely understood. It's thought to be caused by an injury to or difference in the peripheral and central …

Jan 6, 2026 · Parkinson's disease is a movement disorder of the nervous system that worsens over time. The nervous system is a network of nerve cells that controls many parts of the body, including …