Health

Legalizing marijuana and the new science of weed

More than a year into Colorado's experiment legalizing marijuana, labs testing the plants are able for the first time to take stock of the drug's potency and contaminants—and openly paint a picture of what's in today's ...

Medications

Health care M&A leads global deal surge

In a big year for deal making, the health care industry is a standout. Large drugmakers are buying and selling businesses to control costs and deploy surplus cash. A rising stock market, tax strategies and low interest rates ...

Neuroscience

When brain says buy, you may not know why

Billions of neurons fire in the brains of stock market traders as they decide whether to buy or sell shares in a matter of seconds. Some of these brain waves produce rational calculations about how best to make a profit, ...

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