Humans
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We summarize the week's scientific breakthroughs every Thursday.
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		ArchaeologyAncient cemetery provides peek into Philistines’ lives, health
Burial site offers new look at Israelites’ mysterious enemies.
By Bruce Bower - 			
			
		ArchaeologyGlassmaking may have begun in Egypt, not Mesopotamia
Ancient Mesopotamians lagged behind Egyptians as glassmakers.
By Bruce Bower - 			
			
		Health & MedicineOld blood carries risks for brain
Young blood may not save the brain, by one measure at least.
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		Health & MedicineA Pap smear can scoop up fetal cells for genome testing
Pap smear during pregnancy could offer an early way to test for fetal genetic disorders.
By Meghan Rosen - 			
			
		ArchaeologyFor some early monks, impaired hearing amplified sounds of silence
Middle-ear ailments probably had little impact on early Christian monks’ lives.
By Bruce Bower - 			
			
		HumansOldest alphabet identified as Hebrew
Contested study indicates ancient Israelites developed first alphabet from Egyptian hieroglyphics.
By Bruce Bower - 			
			
		Health & MedicineThis week in Zika: Vaginal vulnerability, disease double trouble and more
Puerto Rico cases of Zika suggest that the virus prefers women. And two new findings reveal more about Zika’s transmission and ability to survive outside the body.
By Meghan Rosen - 			
			
		Health & Medicine50 years ago, fluoridation was promoted as a bone protector
In 1966, scientists hoped fluoride might protect adult bone health. While the results broke down over time, the benefits for teeth remain clear.
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		Health & MedicineHeartburn drugs may raise stroke risk
Drugs used by millions for heartburn linked to increased risk of stroke.
By Laura Beil - 			
			
		NeuroscienceDespite Alzheimer’s plaques, some seniors remain mentally sharp
Plaques and tangles riddle the brains of some very old and very healthy people.
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		NeuroscienceProtein linked to Parkinson’s travels from gut to brain
Parkinson’s protein can travel from gut to brain, mouse study suggests.
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		Health & MedicineDownside of yo-yo dieting is rise in heart disease risk
Yo-yo dieting hurts the heart, even if you’re not overweight.
By Laura Beil