Amelia Hill

Teams vie for place on shortlist for XPrize Healthspan, the richest prize yet in the longevity field

Admitting its goal is “audacious”, the largest longevity-focused prize in history – offering $101m (£76m) in prize money – will announce its shortlist of candidates on Monday.

The aim of the seven-year XPrize Healthspan is to develop a way for humans to dramatically rejuvenate muscles, cognition and immune functions, the three systems crucial to healthy ageing.

Ethel Caterham, who lives in a care home in Surrey and takes life in her stride, is first Briton to claim title since 1987

The secret of longevity is to do what you like, according to the 115-year old British woman named the world’s oldest living person.

Ethel Caterham, born in 1909, is the first Briton to claim the title of world’s oldest person since 1987, when 114-year-old Anna Williams was the record holder.