IN BLANKSTARE NEWS: Check your health … with a selfie.

Researchers at the University of Beijing in China are using special cameras to take pictures of the heat coming off your face. These thermal images can identify how old you are – health-wise, not just your age – and can even identify if you might have certain health issues.

"Aging is a natural process," said the researchers. "But our tool has the potential to promote healthy aging and help people live disease-free."