October 29, 2012 Proton therapy can be targeted much more precisely than regular radiation. The hope is that it translates into far fewer side effects, such as impotence and incontinence. But it also costs twice as much as regular radiation. And there's no proof it's more effective — it could potentially be worse, say some radiation experts.
October 24, 2012 Scientists have made changes in human DNA that can be passed down from one generation to the next. The researchers say they took the step to try to prevent women from giving birth to babies with genetic diseases. But the research is raising a host of social and moral questions.
October 19, 2012 The American Society for Reproductive Medicine has concluded that freezing women's eggs to treat infertility should no longer be considered "experimental." The practice has long been controversial. Some critics worry the policy shift will encourage more women to turn to egg freezing to stop the biological clock.
September 25, 2012 Doctors used genome sequencing to put a name to the mysterious cluster of symptoms that afflicted Christian Terry, 5. He's one of many patients now getting the test, which can cost as little as $1,000, to resolve undiagnosed illnesses. Doctors are also using it to sequence cancer and target treatment at the precise genetic mutations in a tumor.
September 20, 2012 The nonprofit in charge of distributing organs wants to revamp the system for distributing kidneys for the first time in 25 years. But some transplant specialists and bioethicists fear the changes could end up discriminating against some patients.
May 15, 2012 Mysterious fumes wafting in from outside have repeatedly sickened several nurses at a rural Pennsylvania health clinic, forcing the clinic to temporarily relocate. Like many other people living near gas wells around the country, the clinic's staff wonder whether the industry in their backyard is making them sick.