Marco was born with a disorder that involves muscle weakness and degeneration resulting in a loss of movement. Marco most likely has polymyositis.
multiple sclerosis.
Parkinson’s disease.
muscular dystrophy.

depression is an ongoing sadness\lack of motivation. you feel and feel like its never going to get better. you're so sad to the point you think of death.

anxiety is an ongoing feeling of paranoia\ feeling like everyone is watching you and making fun of you. you get nervous easily and feel like the room is spinning.  

yes, they cause death every year. its a long, exhausting battle. only few make it through as sad as it sounds.

explanation:

hey i can am bored too