Powerball drawing: Jackpot hits $1.5 billion

Warning: this Parkinson's drug can make you addicted to gambling, sex, or food

Messing with the brain's dopamine supply might not be a great idea.

Powerball winning numbers 1/13/16: results of drawing for $1.5 billion jackpot

4 ways the lottery preys on the poor

Stop saying the lottery is for people who are bad at math.

John Oliver's hilarious, horrifying look at state-backed lotteries

State lotteries are advertised for the good things they fund. But are they worth it?

I became a millionaire overnight — and quickly realized that extreme wealth is overrated

What happened after I sold part of my company to Jeff Bezos.

Map: Here's where Powerball is most popular

Which state thinks it's the luckiest? See where people love Powerball the most.

Powerball: What time is the $800 million jackpot drawing?

The biggest lottery in history.

Angus Deaton's badly misunderstood paper on whether happiness peaks at $75,000, explained

Even Orange is the New Black got it wrong.

Money really does buy happiness, in one map

Rich countries are happy. Poor countries aren't.

2 charts that show money really does buy happiness

Surprise! People in wealthier countries are happier.