Multiple sclerosis is a chronic disease that affects the central nervous system, often causing pain, numbness in the limbs and a loss of vision. Symptoms vary by patient and can disappear for months at a time, making it difficult to diagnose early on.
Doctors have cleared Bayne, 22, to compete, said a statement by Roush Fenway Racing.
“I am in the best shape I’ve ever been in, and I feel good,” Bayne said. “There are currently no symptoms and I’m committed to continuing to take the best care of my body as possible.”