Here's how much sleep you actually need

The Brief Thursday, February 5th 2015

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Listen to The Brief. Hear the most important stories of the day.
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1. Jeb Bush Pitches Conservatism for the Middle Class
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time5
The former governor road-tests a message of upward mobility ahead of 2016

2. Here's How Much Sleep You Actually Need
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time6
The National Sleep Foundation, a nonprofit aimed at promoting healthy sleep and safety, says the amount of sleep a person needs is highly variable

3. Dr. Tom Frieden: Vaccines Can Prevent Measles From Being a Disease of the Future
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time7
CDC director Tom Frieden writes exclusively for TIME that "unless we increase vaccination rates," measles "will be a disease of the future"

4. Brian Williams Recants Story About Being Shot Down in Iraq
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time8
The news anchor claimed on a broadcast that his NBC News crew rode a helicopter hit by an RPG in 2003

5. Your Tweets Will Soon Show Up on Google Search Results
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time9
Our 140-character tweets will appear more prominently on Google searches in coming months thanks to a deal reportedly signed between the search engine and Twitter. Users should see the change sometime in the first half of this year

6. Man Convicted of Running Online Black Market 'Silk Road'
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time10
Ross Ulbricht, the website developer who controlled an online bazaar that offered drugs and illicit goods in return for Bitcoin, was found guilty on all charges by a jury in New York on Wednesday. He faces life in prison

7. TransAsia Crash Death Toll at 32 with 11 Still Missing
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time11
Search-and-rescue teams in Taipei continued to look for 11 missing passengers from a TransAsia flight that crashed on Wednesday morning. Flight 235 went down soon after takeoff, having banked hard to the left and clipping a taxi driving along an overpass

8. Johnny Depp Marries Actress Amber Heard
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time12
Pirates of the Caribbean actor Johnny Depp reportedly tied the knot this week with Friday Night Lights actress Amber Heard in a surprise ceremony in Depp's Los Angeles home, just days ahead of a planned celebration on his 45-acre private island in the Bahamas

9. New York Train Collision Probe 'Will Take One Year'
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time13
The New York passenger train that collided with a car Tuesday moved the vehicle 1,000 ft. and tore up 400 ft. of electrified rail, which produced a lethal inferno from the car gasoline interacting with the electrified rail, government investigators said Wednesday

10. Your Phone Can Now Be Used to Test for HIV
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time14
A team of researchers from Columbia University has developed a device that can be plugged into a smartphone and used to quickly test for HIV and syphilis. The device tests for three infectious-disease markers in just 15 minutes by using a finger prick of blood

11. Charlie Hunnam Replaces Cumberbatch in <i>The Lost City of Z</i>
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time15
Charlie Hunnam, best known for Sons of Anarchy and turning down Fifty Shades of Grey, will replace Benedict Cumberbatch as Amazon explorer Colonel Percy Fawcett. Cumberbatch is the second actor to drop out of the role

12. Big Business Gave Heavily to Thwart Ballot Measures in 2014
http://time.chtah.net/a/tBU012xBASRffB84oq1CUgxos$A/time16
The top 50 political donors gave more than $272 million in fights over ballot measures in 2014, nearly two-thirds of the money contributed to those campaigns. Big business was among the major donors

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