Have you ever wondered how much damage your lifestyle may have done to your body? Do you look in the mirror and wonder how healthy you are on the inside?

This 6-part series finds out if it’s possible to repair the damage and literally turn back your body clock.

Straight-talking surgeon and GP, Dr Una Coales, presents Turn Back Your Body Clock. Each week she meets someone whose toxic habits and lifestyle choices have seen their body go to pot. By assessing the extent of the damage with a battery of tests, she gives them a shocking wake-up call, including their estimated life expectancy. This week Neil is told that his drink and drug-fuelled lifestyle is doing serious damage to his body.

With the assistance of health and fitness expert Tim Bean, Dr Una sets out to extend Neil's life expectancy in only eight weeks by improving his fitness, self-esteem and diet, and beating those bad habits.