Grey hairs grow when your body shuts down cancer-prone cells, study suggests: Rather than a depressing sign of ageing, our grey hairs are battle scars in our body’s war against cancer
Greying hair might be a sign of anti-cancer defense: A study in Nature Cell Biology revealed that greying hair might be a byproduct of the body’s defense against cancer. Working with mice, researchers found that pigment-producing cells shut down when their DNA experiences double-strand breaks, preventing the spread of mutations. Over time, this leads to fewer pigment cells and grey hair.