NPR Health

The World Health Organization is trying to ease concerns about spreading Zika as a result of this summer's Olympics in Rio de Janiero.

"Based on current assessment, cancelling or changing the location of the 2016 Olympics will not significantly alter the international spread of Zika virus," a statement released Saturday reads.

A watercolor by scientist-artist David S. Goodsell just might make the Zika virus easier to visualize. The painting, which depicts an area about 110 nanometers wide (a nanometer is a billionth of a meter), shows the virus in the process of infecting a cell.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

The dictionary defines ageism as the "tendency to regard older persons as debilitated, unworthy of attention, or unsuitable for employment." But research indicates that ageism may not just be ill-informed or hurtful. It may also be a matter of life and death.

Not that it's literally killing people. Researcher Becca Levy, a professor of epidemiology and psychology at the Yale School of Public Health, says it depends on how much a given individual takes those negative ideas to heart.

Pages