Lindsay Lohan: Addicted to push-ups

'Mean Girls' actress Lindsay Lohan is addicted to doing push-ups.

Apparently, Lindsay felt insecure about the size of her arms and started to regularly exercise her upper arm muscles, but has now become obsessed.

Lindsay told Britain's OK! magazine: "There is something that I do and people think I'm a little crazy for it but I sometimes just drop and do push-ups. And leg lifts.

"I'm always doing push-ups. Because my arms have been criticised for being really skinny I like doing them.

"And it's good because my brother used to make fun of me because I couldn't do push-ups! I do as many as I can. I'm pretty good, though. I can do a good amount."

Despite her penchant for push-ups, the 'Bobby' actress doesn't enjoy exercising but listens to her favourite Madonna records to motivate her.

Lindsay explained: "I don't like to run but when I do work out I like to listen to Madonna."