Greta Thunberg did not sail across the Atlantic Ocean for two weeks to become a lead singer. But, just days after the 16-year-old proselytizer censured a room of world leaders many times her age for their shared "fairy tales of eternal economic growth," the internet made her one, anyway.

New research raises concern about the safety of permanent hair dye and chemical hair straighteners, especially among African American women. The study was published Wednesday in the International Journal of Cancer.

Updated at 9:37 a.m. ET

House Speaker Nancy Pelosi, D-Calif., announced Thursday morning that House Democrats will move ahead with drafting articles of impeachment against President Trump, though she did not define the scope of those articles.

"His wrongdoing strikes at the very heart of our Constitution," Pelosi said, referring to Trump's efforts to pressure Ukraine to investigate political rivals while hundreds of millions of dollars in military aid were on hold earlier this year.

David Pierce was never someone who sat around watching life go by. He worked as a chef and had a catering business on the side. He sang in his church choir and did community theater, where he met his wife.

Then, in his mid-50s, doctors removed part of Pierce's foot, a complication of diabetes.

"My health just went, kind of really downhill. It really took a turn for the worse," says Pierce, sitting at his dining room table in his tidy home in Apalachin, N.Y. "I couldn't maintain even a part-time schedule."

Earlier this year, an NPR investigation with WAMU and Oregon Public Broadcasting found deep problems in how school districts report restraint and seclusion. Following that investigation, NPR reached out to educators about their experiences with these practices.

Brent McGinn spent a year early in his career working with students who could sometimes hurt themselves.