THE brain cells that control ageing have been discovered offering the hope of people living longer Scientists have found that stem cells in the brain's hypothalamus govern how fast ageing occurs in the body. The discovery, made in mice, could lead to new strategies for warding off age-related diseases and extending lifespan, they claim. The hypothalamus was known to regulate important processes including growth, development, reproduction and metabolism. In 2013, researchers made the surprising finding that it also regulates ageing throughout the body. Now, the same scientists have now pinpointed a tiny population of adult neural stem cells, known to...