14. Miley Cyrus
Miley is the favorite singer and performer of many people today thanks to her powerful stage presence, gorgeous looks, and a booming voice to wrap it al up nicely. But despite what we may think, Miley isn’t perfect. In fact, she revealed to the world in 2009 that she has tachycardia, a heart condition that causes one’s heart to beat much faster than normal.
Although the type of tachycardia she suffers from isn’t dangerous and probably won’t hurt her, she still admits that it bothers her. She says that there isn’t a single moment on stage when she’s not thinking about her heart. Even though some people think that nothing can stop the mighty Miley, maybe she should lay off the lavish lifestyle a bit or risk moving from tachycardia to a more serious condition.