Osteoporosis is a disease in which bones become brittle and easy to break. It is more common in women and usually worsens with age. Michael Mosley is trying to figure out how to keep bodies, bones and muscles healthy.

The senses, with age, begin to wane. Michael Mosley discovers how we can keep our senses - smell, hearing and vision - sharp when we begin to age.

What is the secret to looking good and how can we keep looking good over the years? It is believed that around 60 per cent of Americans use some anti-aging product, but what control do we have over our appearance in old age?

Dr Michael Mosley tries to learn the secrets behind staying healthy. He examines ways that people can make their bodies better at fighting infection and sickness.

Ageing is an inevitable part of life, be it human or any other species. But now, scientists believe that there are ways through which the ageing process can be slowed down as well as reversed.