Measuring body fat is a complex process. Body Mass Index (BMI) is a simple index used to predict obesity-related morbidity and mortality in population studies – and this is where it should have stayed.

It’s rewarding to see the results of your fitness regime – to help justify the early morning alarms, saying ‘no’ to nights out, and the sweat, ache and exhaustion of a workout. DEXA scanning analyses your lean muscle, fat and bone, so you can know exactly how your workout is changing your body.

It isn’t as glamorous as a celebrity quick-fix diet, but consistency and perseverance are the best tactics towards slimming down for summer.

For those of us who find it hard to get excited by gyms and conventional exercise, a more active sex life might prove the incentive.