The gas that reduces blood pressure - but only if you can stand its rotten egg smell
The gas that gives stink bombs their pungent smell could be a breath of fresh air for patients with high blood pressure. British scientists have created a drug which boosts levels of hydrogen sulphide in the body, widening the arteries

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