A CHESTER-BASED personal trainer and gym owner has written a new children's book taking a fun look through the human body.

Ben Fildes has had his first book, titled 'Uncle Ben, What Happens When I Eat Something?', published.

The fact-filled adventure takes the reader around the most awesome, unique, beautiful, amazing piece of engineering there is: you!

Take a trip in the Super Sub around the human body with scientist and inventor Uncle Ben and his inquisitive niece Nia.

Learn about what happens when you eat something and its journey through your system.

Uncle Ben and Nia also get the chance to meet the likes of Keith the Teeth, Muscly Mike, Acid Al and the Enzyme Engineers.

Ben has been an active participant in health and fitness for over 25 years, with 13 of those years being as an operational firefighter.

Now in the fitness industry, he has spoken on fitness and training at the likes of Under Armour Global Headquarters in Baltimore USA, The Olympic stadium in Athens as well as instructing in Russia.

He owns and runs S3 fitness, a training and coaching facility in Chester.

Uncle Ben, What Happens When I Eat Something? is illustrated by Dan McCloskey and the book is now available to buy on Amazon.