Hardly a week goes by without the publication of a new report identifying the fact that we’re all getting fatter and more unhealthy, and the projections suggest that it’s all set to get a whole lot worse. This comes at a time when the health a and fitness industry is booming, and despite the apparent lack of success, the boom looks certain to continue.

If you’re interested in fitness, you have the opportunity to turn that interest into a lucrative business when you become a personal trainer. It’s a flexible opportunity, in that you can choose where, when and with whom you work. You also get to choose  the type of training to specialise in, and there are many types.

While the bulk of your income might come from providing training to your clients, there are a number of other options for making money as well, including books, blogs, training videos, nutritional supplement sales and public speaking.

This isn’t for everyone, but is probably more accessible to people of all ages, than you might think. With an ageing population, I can see opportunities for trainers  to specialise in fitness in later years. And if you’re 70, do you really want a 20 year old trainer telling you what to do?