Ageing cheerleaders give glimpse of world's longest-living women Waving white pom poms in the air, dozens of grey-haired cheerleaders in matching red and white uniforms hop and skip to K-pop music that fills the practice room. Life expectancy in Asia's fourth-largest economy is accelerating rapidly, and for women born in 2030 it could stretch to nine decades on average, the longest in the world, according to research published in The Lancet medical journal. IMAGES AND SOUNDBITES