Stories by Charles Q. Choi

Ni hao or bonjour: do genes drive preference for language type?

After the U.S. Supreme Court ruling, how stiff will greenhouse gas regulations be?

Novel techniques expand the nanotech tool kit

It may seem round when viewed from space, but our planet is actually a bumpy spheroid

The international polar year kicks off

If mental illness is epidemic among teenagers, why isn't screening for it routine?

The brain becomes a target in stem cell clinical trials

We questioned health professionals and plumbed the scientific literature in a quest for the most life-enhancing New Year's resolutions possible

Moderate drinkers fare better than both heavy drinkers and abstainers

You've heard it before, but it bears repeating

Stress can kill you--here's how to avoid it

Getting your numbers under control can cut your risk of heart disease by up to a third

Drug-resistance DNA as the latest freshwater threat

Many genes once thought to be unique to humans have been in the tree of life for over a half billion years

The high costs of too many offspring may have shaped the psychology of women and could explain plunging modern-day birth rates

Discovery that methamphetamine and related drugs lead to tears in major arteries could change how doctors handle such cases

by Charles Q. Choi

A variation of a gene that controls the size of cholesterol molecules in the bloodstream is common among elderly Ashkenazim who remain mentally sharp

by Charles Q. Choi