Twitter shares sink on worries about usage

Shares in Twitter sank more than 12 percent Tuesday as disappointing user numbers overshadowed a doubling of income in its third quarter and sparked several analyst downgrades.

Wearable electronic skin delivers drugs and stores data

Average life expectancy has nearly doubled since 1800, thanks to progress in medicine. Most of that was made by developing drugs and improving public health services. The medical revolution of the 21st century is going to ...

Icahn snaps up Apple shares as price dips

Activist investor Carl Icahn fired off word on Tuesday that he beefed up his Apple stock holdings by a half-billion dollars as the share price dipped.

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