When cells reach the end of their natural lifespan, they undergo a process of shrinking and breaking down into small fragments. These pieces are then eaten up by special cleaner cells called phagocytes.
In with the new
The natural breakdown of cells and the clean-up operation by phagocytes leaves room for new cells to replace them.
Use it or lose it
The speed of ageing varies widely between people. Although genetics plays its part, evidence suggests that keeping both mind and body active can help to slow down the ageing process and may help you live longer.
Staying active
Briton Fauja Singh holds many senior running records, including marathons. In 2013, he ran in the Mumbai Marathon at the age of 102.
Picture Credit : Google