and just feet away, we met samia, standing watch over his baby girl. one of the youngest victims of isis. she's malnourished, die hydrated. the mothers haven't been able to breast fied, there's no water. after months living as prisoners in their own homes, denied the basics for survival, by extremists who claim to be men of god, many are overcome by the agony of what they've endured. malack and dalal are trying to reclaim pieces of their life they once had. do you feel angry about what's happened? sad? but these girls refuse to be held hostage ever again. dalal wants to become a teacher, to use education as a weapon against isis. her little sister, just trying to enjoy life as only a 6-year-old can. too many children bear the wounds of war. physical and mental scars, symbols of their survival. and miraculously, despite an uncertain future, their hopes and dreams are still alive. for nightline, ian panel, in mosul, iraq. >> our thanks to ian panel for that report. >> we'll be right back born to outperform the #1... prestige eye cream for better hydratio

thank you very much coming samia. last century, but now a leading health expert is raising concerns that increases could be tailing off. sir michael marmot, who has advised both the government and world health organization, points out that the rate of increase has halved since 2010. historically, life expectancy at birth has risen by one year for every five years for women and one year every three and a half for men. since 2010, however, that has slowed to one year for every ten for women and one for every six for men. sir michael says the situation needs urgently looking at. this is historically highly unusual because over a long period of time, for a hundred years, life expectancy has been improving, year—on—year, in britain, as it has in many, many other countries. and now it has slowed, it is almost flat, which means that we have fallen behind some of the healthier countries. that's terrible. he says it is not possible to say exactly what has caused it, but he says austerity could be a factor and funding for the n