LOS ANGELES - MILEY Cyrus suffers from a heart condition said reports on Wednesday.
The 16-year-old singer has tachycardia - meaning her heart rate which exceeds the range of a normal resting rate - and admits she worries about the complaint when she performs live.
She says in her new autobiography Miles to Go: 'The type of tachycardia I have isn't dangerous.
'It won't hurt me, but it does bother me.
'There is never a time onstage when I'm not thinking about my heart.' -- Reuters