the benefits of gym training vary, but in general it improves participants' mental states, as well as keeping them physically fit with plenty of energy - visitors in the city will need an abundance of energy to keep up with the energetic cariocas in rio de janeiro.

whilst the explosion in popularity of modern gym training may be a recent phenomenon, its fundamental roots can be traced back thousands of years, to ancient greece - during this time, athletes for public games, such as the olympics, would train at greek gymnasiums - interestingly, the word is derived from the latin gymnos, which means 'nude', as the athletes would train without clothes.