Scientists have found that cinnamon and bubblegum flavoured vaping shrunk the testicles of mice

Scientists have called for the sale of several popular e-cigarette flavours to be stopped after finding evidence that they may damage male fertility.

Health experts are sharply divided on the subject of vaping, which the NHS supports as a way to help people give up smoking but which some researchers say is harmful.

Academics are particularly worried about the compounds used by many vapers to change the taste and smell of e-cigarette smoke.

Studies have shown that some flavours expose smokers to unacceptably high levels of carcinogens while other molecules that are safe to eat are thought to be potentially dangerous to inhale.

A team led by Helen O’Neill, a teaching fellow in reproductive health at University College London, has found the first evidence that