What determines how long we live—and to what extent is our lifespan shaped by our genes? Surprisingly, for decades, scientists believed that the heritability of human lifespan was relatively low ...

Questions about lifespan, DNA, and whether it's down to choice, environment, or pure chance have been and will continue to be asked.

Ageing is mostly hereditary, a conclusion that flies in the face of much conventional medical wisdom regarding dieting, exercising and healthy habits.