The world’s population is shifting. We’re living longer than ever before, with elderly people taking up a greater proportion of the people on the planet.
And yet those extra years aren’t necessarily being enjoyed in good health.
So how do these shifts interact with what we know about genetics and evolution? How might old age – a relatively recent concept, in the history of Homo sapiens – change our species?
And is the association between getting older and being less healthy inevitable?
Source: The ‘Shadow’ in Evolution That Explains Why Long Life Comes at a Cost : ScienceAlert