The headline needs the usual "slightly, statistically more resilient" caveat. And as usual, it's just one study. In mice: > a team reports that, at least in

The headline needs the usual "slightly, statistically more resilient" caveat. And as usual, it's just one study. In mice: > a team reports that, at least in female mice, ageing activates expression of genes on what is usually the ‘silent’, or inactivated, X chromosome [...] Assuming these results can be confirmed in humans,