Raynaud's Disease

While your fingers can go numb and change color when exposed to extreme cold for prolonged periods of time, those with Raynaud's can suffer uncomfortable symptoms, even when the indoor or outdoor environment isn't very cold.

There's currently no cure for the motor neuron disease that slowly paralyzes a person, but medical science is learning a lot about it and making progress. Here's everything to know about ALS, including the signs, symptoms and treatment options.