Humans
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We summarize the week's scientific breakthroughs every Thursday.
- Humans
Want a Science Debate?
Presidential contenders have been debating a broad range of issues. Science isn't one of them.
By Janet Raloff - Health & Medicine
Bariatric Reversal: Stomach surgery curbs some patients’ diabetes
Weight-loss stomach surgery in obese people with type 2 diabetes sends the disease into remission in some patients.
By Nathan Seppa - Humans
Letters from the January 26, 2008, issue of Science News
Bad medicine? In “Unseen Risk: Lifestyle, physical problems may underlie psoriasis link to early mortality” (SN: 12/22&29/07, p. 389), the definition of patients with severe psoriasis as those needing systemic drugs raises the question whether treatment itself may be linked to early mortality. The journal article cited in the story indicates that some systemic treatments […]
By Science News - Humans
From the January 15, 1938, issue
Radio-assisted snowplows, getting to know the "X" particle, and ancient frozen mammoths found in Siberia.
By Science News - Anthropology
Infectious Voyagers: DNA suggests Columbus took syphilis to Europe
A genetic analysis of syphilis and related bacterial strains from different parts of the world fits the theory that Christopher Columbus and his crew brought syphilis from the Americas to Renaissance Europe, where it evolved into modern strains of the sexually transmitted disease.
By Bruce Bower - Humans
A Thirst for Meat: Changes in diet, rising population may strain China’s water supply
Rapid industrialization, an increase in population, and a growing dietary preference for meat in China are straining the country's water resources to the point where food imports probably will be needed to meet demand in coming decades.
By Sid Perkins - Health & Medicine
Phoenix Heart: Replacing a heart’s cells could ease transplants
Scientists removed all the cells from a dead rat heart, injected new heart cells, and produced a beating heart, paving the way for eventually growing organs for transplantation in humans.
- Health & Medicine
Getting the Red Out: Drug improves kids’ psoriasis symptoms
The rheumatoid arthritis drug etanercept clears up psoriasis in children and may become the first systemic medication for the ailment in youngsters.
By Nathan Seppa - Health & Medicine
HIV variant might help vaccine search
Scientists have discovered an unusual HIV protein in a Kenyan woman that makes the virus vulnerable to antibodies.
By Nathan Seppa - Health & Medicine
Sleep disruption and glucose processing
Shallow sleep can depress the body's ability to process glucose efficiently.
By Nathan Seppa - Humans
Letters from the January 19, 2008, issue of Science News
Evening the score When Ai, mother of the chimp Amuyu, whose mental feats you reported in “Chimp Champ: Ape aces memory test, outscores people” (SN: 12/8/07, p. 355), appeared in a television documentary a few years ago, I reproduced for myself the number-sequence test she performed and found that, after practice, I could easily outperform […]
By Science News - Health & Medicine
Night lights may foster cancer
Regularly working through the night appears to come at a steep cost—a heightened risk of cancer.
By Janet Raloff