News

New DNA analysis reveals that, before their mysterious disappearance, the Norse colonies of Greenland had a “near monopoly” on Europe’s walrus ivory supply. An overreliance on this trade may have contributed to Norse Greenland’s collapse when the medieval market declined.

Researchers have discovered that soy protein found in food might counter the negative effects of menopause on bone and metabolic health, and might also have positive impacts on bone strength for women who have not yet reached menopause.

As anyone who has experienced an annoying alternation between dry and watery eyes can confirm, tears alone aren't enough to keep the eye from drying out. Researchers now report the structure of a key long-chain lipid in the tear film lipid layer. Their finding may be used to improve treatments for dry eye.

Researchers have found an indigenous variety of Mexican corn, one of the world's largest food crops, that can fix nitrogen from the atmosphere, instead of requiring synthetic fertilizers, a property previously thought to be restricted to legumes.

The American Osteopathic Association supports the reclassification of cannabis as a Schedule II Drug to facilitate advancement in clinical, public health, patient safety and health policy research, according to a resolution approved by the AOA House of Delegates.

Massachusetts law requires that all recreational marijuana products bear a seal showing they have been tested by a Commission-licensed independent laboratory for contaminants and potency levels.

Salk scientists identify genetic characteristics of fetal stem cells that may lead to breast cancer later in life.

Researchers have developed an optimized “adductomic” approach to the integrated analysis of the totality of cellular DNA damage. The study extends the adductomic analysis of cellular DNA, to urine. This represents a novel procedure for examining the different varieties of DNA damage formed in the body following environmental exposures.

Studies shows why some internal clocks are like wristwatches, while others are like hourglasses.

A new tool combines heavy water with a relatively new laser-imaging method called stimulated Raman scattering, offering a look inside living cells that could help medics.