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"Good" HDL Cholesterol May Not Protect Heart After All, Study Suggests
from CBS News
We've heard it all before: There's "good" cholesterol, called high-density lipoprotein (HDL), that provides protective benefits against heart attacks and then there's "bad" LDL cholesterol, which raises risk for heart problems in high levels.
A new study finds that HDL cholesterol might not boost your heart health as doctors once thought.
The study looked at the genes of about 170,000 individuals, looking for variations in DNA that earlier research shows naturally raise HDL levels in those who possess them. After looking for these 15 genetic variations--called single nucleotide polymorphisms (SNPs)--in the participants, the researchers discovered none of these variations actually reduced their risks for having a heart attack, compared with people who didn't have the variations.
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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