Post-menopausal women who eat plenty of tomatoes and tomato-based products have a lower breast cancer risk, finds a study in the . Rich in the phytochemical lycopene, the fruit is believed to work by raising levels of adiponectin, a hormone that regulates fat and sugar metabolism. For two separate 10-week periods, 70 post-menopausal women ate daily either tomato products with at least 25 milligrams of lycopene, or at least 40 grams of soya protein. Before each test period, the women abstained from eating both products for two weeks. The tomato-rich diet raised levels of adiponectin by 9 per cent, while the soya diet was linked to a reduction in the hormone.

The current regulation process for hip implants "seems to be entirely inadequate", say Oxford University researchers who reviewed medical literature for evidence of clinical effectiveness of various hip implants. The review, published in the (British Medical Journal), showed nearly 8 per cent of more than 136,500 components used in primary hip replacements in 2011 in England and Wales were implanted without readily identifiable evidence of clinical effectiveness.