Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Mending a Broken Heart
Transplants of skeletal-muscle cells may help heal hearts damaged by illness or previous heart attacks.
- Anthropology
Gene, fossil data back diverse human roots
Ancient mitochondrial DNA extracted from Homo sapiens fossils and anatomical links among H. sapiens crania from different regions both support a theory of geographically diverse human origins.
- Health & Medicine
Protein pair induces nerve repair in mice
Mice genetically engineered to make two proteins normally active in early nerve development are able to regrow damaged nerve fibers somewhat in their central nervous systems.
- Health & Medicine
Do Meat and Dairy Harm Aging Bones?
Two studies have contradictory findings about the impacts of animal protein on bones in elderly people.
- Health & Medicine
Vision: The risks of being too fat or too tall
Excess weight or height can have a blinding impact, fostering the development of cataracts.
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- Humans
Science News of the Year 2000
A review of important scientific achievements reported in Science News during the year 2000.
- Health & Medicine
Drugs counteract irritable bowel syndrome
Antibiotics can knock out bacteria overload in the small intestine, temporarily reversing irritable bowel syndrome.
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- Health & Medicine
Antibiotics, vitamins stall stomach cancer
A 6-year study shows that vitamin C, beta-carotene, and antibiotics can reverse premalignant conditions that could otherwise lead to stomach cancer.
- Health & Medicine
Old and new drugs may fight myeloma
In some people with a bone marrow cancer called multiple myeloma, treatment with thalidomide or PS-341, which induces programmed cell death, may improve their chances of survival.
- Health & Medicine
Trials affirm value of drug
The drug STI-571, previously shown to work against chronic myelogenous leukemia, also helps patients who have slipped into an acute, highly lethal form of this cancer.
