Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Rotten Remedy
The gas well-known for its smell of rotten eggs is, recent studies show, a ubiquitous concoction in the body. New studies suggest that the hydrogen sulfide occurring naturally inside us can be both friend and enemy to our health.
- Humans
Letters from the March 8, 2008, issue of Science News
No cure yet “Growing Up to Prozac: Drug makes new neurons mature faster” (SN: 2/9/08, p. 83) suggests that growth of new brain cells, along with increasing connections, may mediate some of the effect of some SSRIs. Since these new cells would likely persist significantly longer than the drugs themselves, do we see a “cure” […]
- Health & Medicine
Medicinal Chocolate . . . Part 2
Dark chocolate can be healthful, but it isn't always so. Here's why.
- Health & Medicine
Medicinal Chocolate . . . Part 1
Therapeutic? - Some health groups are touting the benefits of the antioxidants found in candy.
- Humans
From the February 26, 1938, issue
Evidence of religious head-hunting in ancient Peru, the link between climate and body size, and chest pain tied to obesity.
- Anthropology
Digging that Maya blue
The unusual pigment Maya blue was probably made over an incense fire as part of a ceremony honoring the rain god Chaak, a new analysis of a pot reveals.
- Health & Medicine
Pinning down malaria’s global reach
A new survey and map of malarial areas worldwide show 2.4 billion people at risk.
- Anthropology
Hairy Forensics: Isotopes can identify the regions where a person may have lived
The proportions of certain chemical isotopes in someone's hair can help detectives pin down that individual's region of origin and track their recent movements, a finding that could be particularly useful in forensic investigations.
- Health & Medicine
Sun, inflammation speed aging of skin
Gene profiles show inflammation is the key to making skin age, and sun exposure speeds the process.
- Health & Medicine
Nurturing Our Microbes
Nurturing the microbes living in the human body can pay dividends—from shortening the length of colds to fighting obesity and osteoporosis.
- Health & Medicine
Doctors Without Borders
A medical brain drain may leave many countries unable to care for their sick.
- Humans
Letters from the March 1, 2008, issue of Science News
Big evolvers Regarding “Whales Drink Sounds: Hearing may use an ancient path” (SN: 2/9/08, p. 84), I have heard that whales evolved millions of years ago into their present form, including their very large brains. We humans must be relatively recent in terms of our brain structures. Are there data concerning evolutionary development in whales? […]
