ALS progressively destroys the motor neurons that control voluntary muscles. Upper motor neurons, located in the brain, send messages to lower motor neurons in the spinal cord and from there to ...

DEAR DR. ROACH: I am a 68-year-old woman in good health. For the past several days, I have had muscle twitches all over my body — subtle ones, but nevertheless almost constant. This odd event has me ...

I am an 82-year-old, reasonably fit woman. I am having cramps at night in my feet and legs, causing me to wake three or four times a night. Getting up and walking helps, as does applying a hot ...

Dear Dr. Roach: I am an 82-year-old, reasonably fit woman. I am having cramps at night in my feet and legs, causing me to wake three or four times a night. Getting up and walking helps, as does ...