Shoppers check out vodka in a street kiosk in Moscow in 2008. Alexander Nemenov/Getty Images hide caption

itoggle caption Alexander Nemenov/Getty Images

People practice yoga at a fundraiser for a breast cancer foundation in Hong Kong. Ed Jones/Getty Images hide caption

itoggle caption Ed Jones/Getty Images

Graduate student Jennifer Klunk of McMaster University examines a tooth used to decode the genome of the ancient plague. Courtesy of McMaster University hide caption

itoggle caption Courtesy of McMaster University

Erick Munoz, flanked by lawyers, walks to 96th District Court last Friday. A judge ordered a Texas hospital to remove life support from his wife, Marlise. Tim Sharp/AP hide caption

itoggle caption Tim Sharp/AP

A vendor sells chickens at the Kowloon City Market in Hong Kong last month. As a precautionary measure against the deadly H7N9 virus, Hong Kong has temporarily stopped importing poultry from mainland farms. Lam Yik Fei/Getty Images hide caption

itoggle caption Lam Yik Fei/Getty Images

Clinical specialist Catey Funaiock took notes while observing a 5-year-old boy at the Marcus Autism Center, part of Children's Healthcare of Atlanta, in September. David Goldman/AP hide caption

itoggle caption David Goldman/AP

Insurers get paid more for older people under the Affordable Care Act, even if they're healthy. Tony Ding/AP hide caption

itoggle caption Tony Ding/AP

The sexually transmitted cancer is common in street dogs around the world. Noel Celis/AFP/Getty Images hide caption

itoggle caption Noel Celis/AFP/Getty Images

Researchers say that setting your thermostat a little lower can help you burn more calories. iStockphoto hide caption

itoggle caption iStockphoto

Kendall Schrantz, center, stretches after a class at Downsize Fitness in Fort Worth. Lauren Silverman for NPR hide caption

itoggle caption Lauren Silverman for NPR

Marilyn Budzynski takes care of her 20-year-old son, Michael, in Eustis, Fla., in September. Michael suffers from Dravet syndrome, a severe form of epilepsy. Tom Benitez/MCT /Landov hide caption

itoggle caption Tom Benitez/MCT /Landov

SoloHealth owns 3,500 health screening kiosks like this one in San Francisco. In some states, the company sells customer contact information to insurers. April Dembosky hide caption

itoggle caption April Dembosky