The Supreme Court will hear another challenge to the Affordable Care Act about religious objections to providing contraception. Jonathan Ernst/Reuters /Landov hide caption
Physical exercise, diet and supportive counseling are the first steps of any weight-loss program. But sometimes that's not enough to take large amounts of weight off, and keep it off, doctors say. 13/Ocean/Corbis hide caption
An Iraqi man receives a dose of cholera vaccine in Baghdad on Nov. 1. There have been more than 1,800 cases in the country. SABAH ARAR/AFP/Getty Images hide caption
If I log that milkshake do the calories still count? iStockphoto hide caption
"I know for myself, I have a very colorful personality, rich ideas, and just a lot going on in my mind. But there's a gap between where that stands, and how I communicate it with the rest of the world." — Alix Generous Marla Aufmuth/TED hide caption
"How is it that we spend more time taking care of our teeth than we do our minds?" — Guy Winch Courtesy of Julia Gliebova Photography hide caption
Human stem cells, in this case made from adult skin cells, can give rise to any sort of human cell. Some scientists would like to insert such cells into nonhuman, animal embryos, in hopes of one day growing human organs for transplantation. Science Source hide caption
You'd be looking blue, too, if you realized you'd made big errors in your research. Christopher Thorstenson/Open Science Framework hide caption
Parents can psych themselves out when it comes to dealing with teenagers. Jamie Grill/Tetra Images/Corbis hide caption
Microbiologist Mi Kang works to identify a strain of E. coli from a specimen in a lab at the Washington State Department of Health on Tuesday in Shoreline, Wash. Elaine Thompson/AP hide caption
Women can get a free pregnancy test and a free ultrasound at the clinic, as well as counseling regarding three options — parenting, adoption and abortion. The clinic will not refer clients for abortions. Becky Sullivan/NPR hide caption
The dwarf tapeworm, or Hymenolepis nana, is the most common tapeworm in humans. It's 2 inches long at most. Courtesy Peter Olson, Natural History Museum, London hide caption
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