Health & Medicine
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ChemistryScientists Say: Fluoride
This electrically charged form of fluorine boasts powerful tooth-strengthening abilities.
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GeneticsCaffeine may dial down genes crucial for brain development, teen finds
Data from animal studies point to a troubling possibility: Caffeine may alter brain development.
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Health & MedicineTeens invent first chewing gum to tackle anxiety
Flavonoids from passionflower plants may one day give chewing gums the ability to take the edge off frazzled nerves or anxiety, report two Regeneron ISEF finalists.
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Health & MedicinePositive thinking could help boost your immune system
With real-time feedback, people can learn to turn on a part of the brain that helps rev up the immune system, new data show.
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Artificial IntelligenceAI may be giving teens bad diet advice
The meal plans that AI made for fictional teens cut an entire meal’s worth of calories per day.
By Lily Burton -
Health & MedicineHow pitchers rest between innings could save their arms — and stats
Focusing on muscle recovery during games could help keep pitch speeds high and injury risk low, one ISEF finalist finds.
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Health & Medicine6 surprising science-backed ways to beat the heat
From a new hairstyle or burst of mint to how you decorate your windows, these research-backed tips and tricks can help you beat the heat to stay cool all summer long.
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Health & MedicineScientists get smart about farts with new underwear sensor
It snaps into regular undies to measure releases of hydrogen gas. Rates vary widely, but 32 farts a day seems about average, early data suggest.
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PlantsLight pollution could be supercharging your pollen allergies
Light pollution in North American cities seems to be tricking plants into releasing pollen for longer periods each year.
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HumansLet’s learn about adrenaline
In short bursts, this hormone can help you face your fears. But in the long run, too much of it can be unhealthy.
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Health & MedicineMeet CLA, a naturally ‘healthy’ fat in burgers, ice cream and more
Solid at room temp, the natural trans fat conjugated linoleic acid resembles saturated fats — except that it appears good for the body in many ways.
By Janet Raloff -
Health & MedicineHere’s what nutrition experts say about dietary fat
New U.S. dietary guidelines promote eating full-fat dairy and meats. But health experts say nuts and seed oils are better sources of the two crucial fats we need.