Training mums and dads as "super parents" can dramatically improve a child's autism, a study shows.

An advert in which a tearful woman meets a slimmer, happier version of herself is banned.

Scientists are planning to release millions of modified mosquitoes in urban areas of Brazil and Colombia, in an effort to tackle Zika, dengue and chikungunya viruses.

One of the most demonised patients in history - Gaetan Dugas - has been convincingly cleared of reports he spread HIV to the US, say scientists.