Education Secretary Betsy DeVos speaks with the media after a series of listening sessions about campus sexual violence in July 2017. Among the significant changes is that schools can make it harder to prove allegations. Alex Brandon/AP hide caption

Simone Giertz on the TED stage. Bret Hartman/TED hide caption

A total solar eclipse. David Baron hide caption

Ingrid Fetell Lee on the TED stage. Ryan Lash/TED hide caption

Becky Shaw's first pregnancy ended in a miscarriage in 2014. The following year, she and her husband, Ben, had Parker, their "rainbow baby," as babies born after pregnancy loss are often called. Ruby Eliason Photography hide caption

Health workers help an unconfirmed Ebola patient into her bed inside a treatment center in Democratic Republic of the Congo. John Wessels/AFP/Getty Images hide caption

Research hasn't delivered a definitive answer on whether fish oil and Vitamin D supplements have health benefits, but it's clear that eating fish is beneficial. Enn Li Photography/Getty Images hide caption

FDA Commissioner Scott Gottlieb said he wants to ban menthol cigarettes because teenagers often become addicted to nicotine by smoking them. Joe Raedle/Getty Images hide caption

"Everything is private information, stored on your computer or a computer you designate," says George Church, genetics professor at Harvard Medical School, about the approach of Nebula Genomics. Craig Barritt/Getty Images for The New Yorker hide caption

A malnourished child receives medical treatment in Sanaa, Yemen. Mohammed Hamoud/Getty Images hide caption

Clinicians and first responders who care for victims of gun violence can suffer what's called vicarious trauma. Image Source/Getty Images hide caption

Insomnia, by Marina Benjamin NPR hide caption

Songwriter Dan Johnson released an album earlier this year and a companion book that focuses on the mental health struggles of many veterans. He founded a non-profit called Project Hemingway dedicated to bringing down the veteran suicide rate. Doug Davis for NPR hide caption

Chase Kulakowski, 3, contracted the polio-like condition known as acute flaccid myelitis in 2016. Two years later, his mother isn't sure he will ever recover. He's seen on his bed at home in Dyer, Ind., in October. Armando L. Sanchez/Chicago Tribune/TNS via Getty Images hide caption

Helping a spouse or parent who has dementia steer clear of hazards can include ridding the home of all guns. Nicole Xu for NPR hide caption

Humans would do better to accept many of the life forms that share our space, than to scrub them all away, says ecologist Rob Dunn. Basic Books hide caption