The candles on your birthday cake don't tell the whole story. As anyone who ever attended a high-school reunion can tell you, some people age faster than others.

After fans were left disappointed by the move, a source has now claimed Kelly Clarkson was left “devastated” over the ...

Assessing how and why people age differently has long eluded doctors and scientists, particularly when there are no obvious explanations such as illness or history of injury.But a team of researchers ...