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President vows to fix flawed Obamacare website
President Barack Obama Saturday acknowledged problems with the rollout of a key health website, adding he had people "working overtime" to fix the glitches that have marred a flagship domestic policy. ... more
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Study finds time in space is risk to astronauts' eyes, genes
Astronauts spending as little as 2 weeks in space may experience profound changes in eye structure and gene expression, U.S. researchers report. ... more
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HIV has big hiding place, foiling hopes for cure
Modern medicine can keep HIV at bay but not cure it, and researchers said Thursday the reason may lie in the larger-than-expected size of the virus's hiding place. ... more
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Physical cues help mature cells revert into embryonic-like stem cells
Bioengineers at the University of California, Berkeley, have shown that physical cues can replace certain chemicals when nudging mature cells back to a pluripotent stage, capable of becoming any cel ... more
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