Marijuana could be legal for nearly a fifth of the US population after November

This November’s ballot initiatives could make 2016 the biggest year for marijuana legalization yet.

How bad is the opioid epidemic? Drug overdoses now kill more Americans than HIV/AIDS ever did.

A brief guide to one of the biggest public health crises facing America today.

Hajj, the Islamic pilgrimage to Mecca, explained for non-Muslims

At this moment, some 1.3 million people from 164 different countries are in Mecca, Saudi Arabia, performing the hajj, the Islamic religious pilgrimage — including, according to the US State...

There’s a lot of junk fMRI research out there. Here’s what top neuroscientists want you to know.

It's easy to misrepresent the findings from brain scan studies. Just ask a dead salmon.

TIFF, the unofficial start of prestige-movie season, explained

The Toronto International Film Festival is about a lot more than Oscars (but it’s also about Oscars).

Donald Trump’s immigration plan, explained in 500 words

It’s pretty clear!

Supreme Court refuses to revive North Carolina's controversial, probably discriminatory voter ID law

After five decades, the legacy of the Voting Rights Act is still being decided in court.

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Chicago Police Department moves to fire 5 officers over Laquan McDonald police shooting

The police officer who killed McDonald was already charged with murder. Now he and other officers could lose their jobs.

More Americans died of drug overdoses in 2014 than any other year on record. Here's why.

US doctors wanted to treat pain as a serious medical problem. But when pharmaceutical companies pushed opioid painkillers with a misleading marketing campaign, they started a drug crisis.

North Carolina's anti-LGBTQ law just suffered a big setback in court

North Carolina's law combines two types of anti-LGBTQ measures: laws allowing discrimination against LGBTQ people and anti-transgender bathroom bills.

Read every awful thing Donald Trump has said about minorities and tell me he’s not racist

Trump regularly tells reporters that he’s "the least racist person that you’ve ever encountered." But his record tells another story.