Featured in ask popsci
You can injure yourself stretching—but it’s not easy
Stretching should never cause agonizing pain.
Can you overdose on weed?
You probably can’t blaze yourself to death, but that doesn’t mean there’s no such thing as a marijuana overdose.
Is it possible to boost your immune system?
Every question you’ve ever wanted to know about how not to get sick, answered.
Why don’t we grow to be 10 feet tall?
Thank millions of years of evolution. And your parents.
Why you’re more likely to cry on an airplane
Welcome to the Mile Cry Club.
Why do we get goosebumps?
Happiness and fear are more similar than you might think.
Why do I feel dizzy after spinning?
Sometimes, it takes a while for your brain to catch up to your body.
Will cracking my knuckles give me arthritis?
The splintering sound makes the habit seem far worse than it is.
What would happen if the moon suddenly disappeared?
Life as we know it probably wouldn’t exist.
Why hasn’t the sun burned out yet?
Our planet's personal space heater is incredibly efficient.