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The nation’s biggest tobacco company wants to move smokers away from conventional cigarettes to a new product that’s heated rather than burned — but first it needs a green light from the government. Philip Morris International has petitioned the Food and Drug Administration (FDA) for approval to sell IQOS, which it calls a “less risky” smoke-free tobacco product, in the United States. (Wheeler, 8/23)

If you're a woman, there's a good chance you've used Johnson's Baby Powder at some point. It smells good, and it can keep you dry. But is it dangerous? Dr. Daniel Cramer says yes. He's a professor of obstetrics and gynecology at Brigham and Women's Hospital in Boston. He says talc — the mineral in talcum powder — can cause ovarian cancer. "Overall, women may increase their risk in general by about 33 percent by using talc in their hygiene," Cramer says. (Kodjak, 8/22)

Being a world-class distance runner in your youth does not guarantee that you will be fit and healthy in retirement. But it helps, according to a new study that followed a group of elite American runners for 45 years. The study’s findings raise interesting questions about how we can and should age and the role that youthful activity might play in our health later in life. (Reynolds, 8/23)

Els van der Heijden, who has cystic fibrosis, was finding it ever harder to breathe as her lungs filled with thick, sticky mucus. Despite taking more than a dozen pills and inhalers a day, the 53-year-old had to stop working and scale back doing the thing she loved best, horseback riding. Doctors saw no sense in trying an expensive new drug because it hasn't been proven to work in people with the rare type of cystic fibrosis that van der Heijden had. (8/23)