A new survey by Kettler reveals that 30% of people don't even break a sweat   when exercising at the gym. Other findings:

- 20% of people spend time chatting and gossiping at the gym

- only 50% of gymgoers engage in serious workouts

- 10% of gymgoers are too embarrassed to get sweaty

- 25% of gymgoers spend more time in the sauna or hot tub than they do on any   of the exercise machines

- 10% of people have joined a gym to meet a member of the opposite sex