PTs offer a variety of services (but not that)

‘Clients tell and ask us all sorts of things – sometimes way more than you’ve bargained for. One time, a colleague of mine was personally requested for a home visit by a woman in Mayfair whose husband was away from home. When he turned up, she was just wearing a dressing gown and sexy underwear.’

Taking up running can be bad for you

‘Often, if you’re overweight, running intensively is actually one of the worst things you can try. Hard, tarmacked city surfaces can be bad news for your knees. Yes, cardio is good, but it needs to be part of an overall mix that also includes weight training. It’s all about giving your whole body a workout: sit-ups alone won’t burn off the fat on your belly. It doesn’t work like that.’

For PTs, it’s survival of the fittest

‘My business, DT Training, specialises in helping people with disabilities. It’s crucial to find a niche because the supply of PTs has outgrown demand. Hundreds of new personal trainers set up each month in London. It’s often thought we just spend a few hours in the gym each day and chill out in between, but developing a client base takes lots of hard work and networking.’