A compound produced by decaying tissue makes people more alert to threats.

CHEMISTRY
A little peer pressure goes a long way in the chemistry world.
You've mastered the half-moon and know exactly what shades are on trend (greige? Marsala?). Still, there's plenty more to learn about the polish you swipe on your fingers and toes.
Furthermore, what color is human meat?
He threw wild, beaned batters, and lost all sense of time—but Dock Ellis still managed to pitch a no-hitter while high on LSD.
The popular image of a witch, which you can see everywhere right now in the form of Halloween costumes and decorations, is a woman with a pointy hat and warty nose stirring a cauldron or flying on a broom. How did that odd choice of transportation get tie
Does Leads PB chemical symbol drive you crazy? Well, theres actually some reasoning behind it.
Garlic is tasty, but its flavor comes at the cost of alienating your dinner partners with a distinct odor on your breath—and even your skin—when the meal is done. How do these innocent-looking little bulbs cause so much trouble?