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.

Understanding the Context

Breathing rapidly (hyperventilation). Sweating. Trembling. Feeling weak or tired.

Key Insights

Trouble concentrating or thinking about anything other than the present worry. Having trouble ... 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 system, symptoms may happen, including numbness, tingling, weakness, visual changes, bladder and bowel troubles, memory troubles, or mood changes, for example. Niacin is a B vitamin the body makes.

Final Thoughts

The body uses niacin to turn food into energy. It helps keep the nervous system, digestive system, and skin healthy. People may take niacin, also called vitamin B-3, as part of a daily multivitamin. But most people get enough niacin from the food they eat. Foods rich in niacin include yeast, milk, meat, and cereals. 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 movement. The peripheral nervous system sends information from the brain and spinal cord, also called the central nervous system, to the rest of the body through motor nerves. The peripheral nerves also send sensory information to the central nervous system through sensory nerves. Peripheral neuropathy can result from traumatic injuries, infections, metabolic problems, inherited causes and exposure to ...