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Tom Le Goff/Getty Images Sleep apnea, estimated to affect 18 million Americans, causes sufferers to stop breathing multiple times an hour overnight, disrupting sleep and contributing to other health conditions. A new device implanted under the skin could soon be an alternative to a bulky mask for the millions of Americans with sleep apnea. Sleep apnea is a disorder that ...

In one of the biggest advances against leukemia and other blood cancers in many years, doctors are reporting unprecedented success by using gene therapy to transform patients’ blood cells into soldiers that seek and destroy cancer. A few patients with one type of leukemia were given this one-time, experimental therapy several years ago and some remain cancer-free today. Now, at ...