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An unprecedented study suggests the Apple Watch can help detect heart problems. But very few people actually used it to do that. (AAPL)

At the beginning of the year, Apple CEO Tim Cook said his company’s “greatest contribution to mankind” would be in health. So, can the Apple Watch help spot heart problems? A study published Wednesday says yes. There are caveats. The study did not use the most recent Apple Watch, which has a special sensor designed […]

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Elizabeth Warren puts more billionaires on blast, reportedly purchasing CNBC ad time to further push her wealth tax

Senator Elizabeth Warren is taking her squabble with opposing billionaires to TV by buying ad time for CNBC this week, a campaign aide told CNBC. The video is titled “Elizabeth Warren Stands Up to Billionaires,” and includes clips of investor Leon Cooperman, former Goldman Sachs CEO Lloyd Blankfein, and others criticizing Warren’s proposed wealth tax. […]