"Grey's Anatomy" star Eric Dane reveals he's been diagnosed with ALS

"Grey's Anatomy" star Eric Dane said Thursday that he has been diagnosed with amyotrophic lateral sclerosis, or ALS, a rare degenerative condition that causes progressive muscle paralysis. 

Dane opened up about his diagnosis in an exclusive statement to People magazine. 

"I am grateful to have my loving family by my side as we navigate this next chapter," said Dane, who is married to actress Rebecca Gayheart. The couple have two teenage daughters.