Hollywood star Sandra Bullock said she is "thankful" her mother forced her into athletics as a child which has helped to keep fit.

The 45-year-old actress recently had a naked scene in new movie The Proposal alongside Ryan Reynolds, 32, and she admitted it was getting into exercise at a young age that has kept her in shape.

"I have to say, Helga Bullock - a very strict German woman - forced me into gymnastics and dance at a very young age.

"I hated her for it, then continued to do other athletics and now I am thankful for what she started because it's something I can keep doing for the rest of my life."

Sounds like the Surgeon General has just found their new spokesperson for physical education!