Health & Medicine
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		Health & MedicineMeasuring Soft Drinks’ Jolt
Researchers report what most soft-drink labels don't: how much caffeine your refreshments contain.
By Janet Raloff - 			
			
		Health & MedicineInfectious Obesity: Adenovirus fattens stem cells
Some cases of obesity may result from infection by a virus that can transform adult stem cells into fat-storing cells.
By Brian Vastag - 			
			
		Health & MedicineIf You Can Stomach It: Obesity surgery extends life span
Drastic weight loss achieved through gastric bypass and other stomach surgeries improves long-term survival for very obese people.
By Nathan Seppa - 			
			
		Health & MedicineVaccine targets ovarian-cancer cells
A vaccine for ovarian cancer enables some women who've undergone chemotherapy to stay in remission.
By Nathan Seppa - 			
			
		Health & MedicineLithium might help bone healing
In mice, treatment with lithium assists in the production of a bone-repair protein and improves the healing of fractures.
By Nathan Seppa - 			
			
		Health & MedicineCaffeine Aids Golden Girls’ Mental Health
Coffee and tea appear to keep aging women sharp. Men, not so much.
By Janet Raloff - 			
			
		Health & MedicineCalming Factor: DNA vaccine for MS passes initial test
A DNA vaccine against multiple sclerosis passes a safety trial and shows signs of suppressing immune-directed nerve damage.
By Nathan Seppa - 			
			
		Health & MedicineAnti-inflammatory prevents pancreatic cancer in mice
An anti-inflammatory drug of the COX-2 inhibitor family blocks precancerous lesions in mice prone to pancreatic cancer.
By Nathan Seppa - 			
			
		Health & MedicineNerve Link: Alzheimer’s suspect shows up in glaucoma
Amyloid-beta, the protein fragment implicated in Alzheimer's disease, may also play a role in glaucoma.
By Nathan Seppa - 			
			
		Health & MedicineSkeletal Discovery: Bone cells affect metabolism
A protein made by bone cells has a surprising influence on energy metabolism, and could have a role in treating diabetes.
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		Health & MedicineSerotonin lower in shift workers
Workers who rotate between day and night shifts have less of the brain chemical serotonin than day shift workers do.
By Brian Vastag - 			
			
		Health & MedicineCT heart scans: Risk climbs as age at screening falls
CT scans are increasingly used to investigate heart blockages, but their X rays can increase cancer risk.
By Janet Raloff