American Doctor in Liberia Tests Positive for Ebola

b_250_0_16777215_00_images_obgrabber_2014-07_8a4a433490.jpgiStockphoto/Thinkstock (MONROVIA, Liberia) -- An American doctor working with an international relief organization in Liberia tested positive for the Ebola virus. Dr. Kent Brantly had been working as the medical director for Samaritan's Purse, an organization working to provide aid to those affected by the spread of Ebola. Brantly is undergoing treatment in an isolation center after he contracted the deadly virus this week.

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Can a Jolting Wearable-Fitness Tracker Get You to Work Out?

b_250_0_16777215_00_images_obgrabber_2014-07_367020f2af.jpgiStockphoto/Thinkstock (NEW YORK) --  If you need a little incentive to get up off the couch, a new wearable device could give you just the jolt you need. The Pavlok device isn't on the market just yet, but its creator Maneesh Sethi said the device will have features to incentivize working out -- including a small zap for when you miss a workout. Sethi says the device will encourage people in a way normal fitness trackers can't.

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Boy Battling Cancer Turns Six with 'Close to 100,000' Birthday Cards

b_250_0_16777215_00_images_obgrabber_2014-07_4e96e29980.jpgIngram Publishing/Thinkstock (BOSTON) -- Danny Nickerson celebrated his 6th birthday with the one birthday present he had been hoping for: tens of thousands of birthday cards. The 6-year-old is fighting an inoperable brain tumor and his mother made an appeal on social media to have strangers send him cards. On Friday, Danny visited the post office where close to 100,000 cards had been sent, according to a Facebook post from Danny's mother Carley Nickerson.

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American Red Cross Issues Urgent Call for Blood Donations

b_250_0_16777215_00_images_obgrabber_2014-07_8ea55491c1.jpgHemera/Thinkstock (NEW YORK) -- The American Red Cross issued a call for blood donations this week, saying that donations are down eight percent in the last 11 weeks. The Red Cross says that because Independence Day fell on a Friday, many sponsors did not host blood drives in early July, as people took long weekends off. An average summer week features about 4,400 Red Cross blood drives, compared to just 3,450 for the week of Independence Day this year.

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Playing Hard to Get May Not Work for Women, Study Says

b_250_0_16777215_00_images_obgrabber_2014-07_17bc825e89.jpgiStock/Thinkstock (NEW YORK) -- When it comes to dating, some may tell women play it coy, but new research shows that more responsive females are successful in the mating game. In a report published in the Personality and Social Psychology Bulletin, researchers simulated an early dating experience with two strangers.

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