A new study published in Nature Human Behaviour shows that happiness can come from either within or from external influences, from both, or neither — and which is true differs across people.

I could have 100% told you guys this and saved you a bunch of time and money.

Someone threw a bunch of spiked nails across a highway exit ramp. I caught one of them in my tire.

Some people are happy when others are miserable – I felt that was an excluded middle from the study’s conclusion.