Humans
Sign up for our newsletter
We summarize the week's scientific breakthroughs every Thursday.
- 			
			
		LifeEstrogen may reprogram prostate cancer gene in black men
Study finds a lack of chemical tags near a prostate cancer gene in African American males.
 - 			
			
		ArchaeologyEngraved pigments point to ancient symbolic tradition
Analyses of patterns incised on pieces of ancient pigment indicate that people in southern Africa passed along symbolic practices from 100,000 to 75,000 years ago, scientists say.
By Bruce Bower - 			
			
		HumansPlump youngsters show heart-y risks
Even fat 7-year olds show they're developing a risk of blood clots and other impacts of cardiovascular disease.
By Janet Raloff - 			
			
		Health & MedicineOrigins of the swine flu virus
Researchers use evolutionary history to trace the early days of the pandemic.
 - 			
			
		Health & MedicineStomach surgery helps obese adolescents
Laparoscopic banding surgery to limit appetite improves several health markers in obese adolescents.
By Nathan Seppa - 			
			
		 - 			
			
		Health & MedicineReplacing microRNA for cancer treatment
Replacing missing microRNAs in cancer cells may open up a new field for cancer treatment.
 - 			
			
		Health & MedicineStressed-out DNA turns mousy brown hair gray
Scientists show how change happens when cells responsible for colorful hair lose their self-renewing abilities.
 - 			
			
		Health & MedicineMore troubling news about BPA
Animal studies link bisphenol A — a building block of hard, clear plastics that taints many foods — with new adverse health effects.
By Janet Raloff - 			
			
		Health & MedicineTuberculosis bacterium subverts basic cell functions
The tuberculosis microbe makes compounds that alter basic systems inside key immune cells, facilitating the bacterium’s survival in the body, new research shows.
By Nathan Seppa - 			
			
		Health & MedicineHospitals’ drug problem
Hospitals often don't know pharmaceutical-waste rules, and even those that do often release huge quantities of drugs into the environment.
By Janet Raloff - 			
			
		EarthThe Maine way to get rid of drugs
Maine residents can soon send away old and unwanted drugs for free, "green" disposal.
By Janet Raloff