Video. A new study is raising fears that our obsession with obesity is masking another health crisis - our general lack of fitness. By the age of 15, children are five times more likely to be unfit than obese.
Zumba fans across the region are joining together to try to break the world record for the world's biggest Zumba class.
A gym is running simultaneous lessons in its clubs across the nation on Saturday lunchtime.
According to the Guinness Book of Records the largest Zumba class held in Australia had three thousand one hundred and five participants.