BEWARE OF THE BOUNCE.

THE fitness regimes undertaken by millions of British women could cause their breasts to sag, scientists are warning.

Researchers at Portsmouth University, have found that

UP FOR THE CUP: Lorraine Kelly acts out her Bras For Africa spoof at a shopping centre 9.5million women take the risk because they do not wear sport bras.

They found that uncontrolled movement caused by exercise such as jogging puts great strain on the breast's fragile support structure.

But wearing a sports bra reduced breast bounce by three q uarters.