Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Sperm just say NO to egg cells
Sperm fertilizing an egg produce a whiff of nitric oxide.
- Health & Medicine
Marrow converted into brain cells
Scientists can now efficiently transform bone marrow into nerve cells.
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- Humans
From the June 17, 1933, issue
STRATOSPHERE SHELL PREPARED FOR NAVIGATORS The little metal sphere that will be the stratosphere home of two men and scientific instruments for a few hours next month is rapidly being completed (SNL, May 27, ’33, p. 323). It is pictured on the front cover with Dr. Jean F. Piccard emerging at the unfinished vertex of […]
- Health & Medicine
Carotid surgery stands test of time
Surgery to remove blockages from the carotid artery in the neck has lasting effects against stroke over several years and even provides some benefit when it's delayed.
- Health & Medicine
Domestic Disease: Exotic pets bring pathogens home
The potentially deadly monkeypox virus has spread from Africa to people in several states via infected pet prairie dogs.
- Health & Medicine
Full-Length Pregnancy: Progesterone product may reduce premature births
A drug related to the female hormone progesterone helps some pregnant women who are prone to premature birth extend their pregnancies.
- Anthropology
African Legacy: Fossils plug gap in human origins
Scientists who discovered three partial Homo sapiens skulls in Ethiopia that date to nearly 160,000 years ago say that the finds document humanity's evolution in Africa, independently of European Neandertals.
- Health & Medicine
Oh Boy—Is Mom Hungry!
At birth, boys tend to weigh about 100 grams (3.5 ounces) more than girls. An international research team wondered whether that meant that boys’ moms ate more during pregnancy. In data published this week, the scientists now confirm that’s exactly what happens. Though women eat more when carrying a boy, they don’t gain more weight […]
- Humans
From the June 10, 1933, issue
BRAINLIKE STALAGMITES FOUND IN MARYLAND CAVE Stalagmite deposits shaped like human brains have been found on the floor of a newly discovered cave in Mount Etna, near Beaver Creek, Md., about 60 miles from Washington. James H. Benn of the Smithsonian Institution staff, who was detailed to make a geological investigation, brought one of them […]
- Health & Medicine
Cancer Advance: Treatment combinations stall colorectal cancer
Two experimental drugs can induce remission in colorectal cancer patients and extend their survival.
- Health & Medicine
Skipping Meals Might Offer Health Gains
People assume that the ideal meal schedule spreads calorie intake over the course of the day: Never skip breakfast, keep your blood sugar on an even keel, and all that. But Mark Mattson, a neuroscientist at the National Institute on Aging in Baltimore, suspects that conventional wisdom may be due for an overhaul. Skipping breakfast? […]
