Humans
We summarize the week's scientific breakthroughs every Thursday.
- Anthropology
Ancestral Bushwhack: Hominid tree gets trimmed twice
In separate presentations at scientific meetings, two anthropologists challenged the influential view that the human evolutionary family has contained as many as 20 different fossil species.
- Health & Medicine
Do more infections mean less asthma?
Young infants kept out of day care and having no more than one older sibling are significantly more likely to develop asthma than are babies who have greater exposure to other children.
- Humans
From the April 22, 1933, issue
SPARKING PROCESS STUDIED WITH LICHTENBERG FIGURES What is an electric spark made of, is the question partly answered by the brilliant whirligig figure on the front cover of this weeks Science News Letter. The picture is one of several hundred made during research of Prof. C. Edward Magnusson of the University of Washington, Seattle. Prof. […]
- Humans
From the April 29, 1933, issue
LEAVING THE NEST While dredges grappled with her sister ships twisted girders and soaked fabric in the watery Atlantic grave off Barnegat Light, the Macon took to the air. The front cover presents the new queen of the skies as she appeared before being “walked” from the huge Akron air dock for the first trial […]
- Health & Medicine
Protein implicated in Parkinson’s disease
Inhibiting the natural protein cyclo-oxygenase-2, or COX-2, might help fight Parkinson's disease.
- Health & Medicine
Selenium’s Value to Prostate Health
Prostate cancer remains the most common malignancy among U.S. men, and internationally it ranks fourth. Though few studies have offered much insight into what triggers this disease, a growing number of researchers have found evidence suggesting that dietary selenium protects men against this cancer. The seafood in this bowl of sushi can be a rich […]
- Health & Medicine
Antibiotic for Huntington’s disease?
In mice genetically engineered to develop an illness similar to Huntington's disease, the drug minocycline significantly delays the onset of symptoms and death.
- Health & Medicine
Microbes implicated in heart disease
Viruses and bacteria besides chlamydia may play a role in human heart disease through an immune reaction to a heartlike protein they produce.
- Health & Medicine
Genes of cholera germ deciphered
The bacterium that causes cholera has nearly 4,000 genes on its two circular chromosomes.
- Health & Medicine
Teen taters, too
The epidemic of adolescent obesity may owe more to a paucity of exercise than to a growing intake of calories.
- Health & Medicine
Athletes develop whey-better muscles
Dietary supplements coupling whey and creatine promote the development of bigger, stronger muscles in experienced body builders.
- Health & Medicine
Little vessels react to magnetic switch
Magnets can act like vascular switches, increasing or decreasing blood flow to a region of the body.
