From the Wires

Study: 1 in 25 patients gets infection in hospital

CNN: In 2011, approximately 721,800 patients acquired infections at hospitals.

Obama to propose ending NSA bulk data collection

CNN: The proposed legislation would end part of the National Security Agency's bulk phone records data collection program.

Air pollution linked to 7M deaths globally

BBC: The World Health Organization estimates that seven million people died as a result of air pollution in 2012.

U.S. to allow some people to enroll in Obamacare after deadline

Reuters: People who were prevented from enrolling in the federal health insurance marketplace due to technical glitches will be allowed to sign up after March 31.

Missing Malaysia flight 'crashed into ocean'

BBC: Malaysia's prime minister announced that missing flight MH370 ended in the southern Indian Ocean.

Mt. Gox finds 200,000 missing Bitcoins

Bloomberg: The Tokyo-based digital currency exchange located 200,000 of the 850,000 Bitcoins it said had gone missing.

Chewing gum sales declining

CBS: U.S. gum sales have plunged 11% over the last four years.

Most Americans believe in medical conspiracies

Reuters: A survey revealed that approximately half of Americans believe in at least one medical conspiracy theory.

Twitter celebrates eight years

USA Today: To commemorate the social networking site's eighth birthday, it launched a website called first-tweets.com.

Study: lost sleep leads to lost brain cells

BBC: Research suggests that sleep loss may cause a permanent loss of brain cells.

Sony announces virtual-reality headset

CNET: Sony unveiled Project Morpheus, a virtual-reality Playstation 4 headset.

Vladimir Putin signs Russia-Crimea treaty

BBC: The Russian president and the leaders of Crimea have signed a bill to absorb the peninsula into Russia.

Study: foods rich in fish oils may not benefit heart

Bloomberg: Researchers found that foods high in omega-3 do not reduce the risk of heart disease.