The gas that reduces blood pressure - but only if you can stand its rotten egg smell
It has a foul reputation as the stuff of stink bombs and rotten eggs. But hydrogen sulphide gas could prove a breath of fresh air for people with high blood pressure

Ectopic pregnancy test which could save women's fertility 'within a year'
Doctors are developing a test for ectopic pregnancies that could help save a woman's fertility. The blood test could result in earlier diagnosis of the condition - where the egg implants in the wrong place - cutting the need for radical surgery