Sunlight may trigger hormone that makes men hungrier, study suggests

Scientists find ghrelin levels rose in men's blood after sun exposure, but oestrogen appears to block increase in women

Summer sunshine can leave us feeling hot, sweaty and a bit burnt - but it may also make men hungrier, by triggering the release of an appetite-boosting hormone from fat stores in their skin, data suggests.

The study, which was published in the journal Nature Metabolism, adds to growing evidence that the effects of sun exposure may be more complex than first thought.