HS-LS1-6
Construct and revise an explanation based on evidence for how carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form amino acids and/or other large carbon-based molecules.
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Health & MedicineYour gut’s germs may decide whether white bread or whole wheat is best — for you
Surprise! Gut microbes may determine how your body responds to starches in the diet.
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ChemistryCool Jobs: Counting calories
Do calories count? A nutrition label doesn’t tell the whole story. Meet three researchers working to shed light on the complex connections between food and health.
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Health & MedicineThis supplement makes calorie-rich foods less tempting
A supplement that contains the fatty acid propionate causes the brain to rate high-calorie foods less appealing.
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EnvironmentNot so sweet: Fake sugar found at sea
Sucralose — sold in stores as Splenda — has begun turning up in seawater. This raises concern about the fake sweetener’s impacts on the environment.
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Health & MedicineTeens eating better but gaining weight
From 1999 through 2012, teens got heavier. But by downing less sugar and eating more healthy fats, their bodies also showed signs that these teens were somewhat healthier.
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Health & MedicineExplainer: What is metabolic syndrome?
A “couch potato” lifestyle of too much sugary, fatty food and too little exercise leads to health problems. This is known as metabolic syndrome.
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AgricultureOrganic food starts to prove its worth
Organic food often comes with a higher price. But research is showing that food grown this way can be better for the environment — and possibly for us.
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Health & MedicineSugar makes mice sleepy
Sugar may amp up sleep-promoting cells in the brain, a new study in mice finds.
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PlantsUsing plants to solve environmental problems
Problems in their communities suggested good research projects to three teens. Each wanted to tackle a different issue, from pollution to world hunger. To learn more about these issues, they turned to their local ponds, wetlands and gardens.
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Health & MedicineFor better weight control, fiber up!
Certain types of fiber suppress appetite, at least in mice. Found in fruits, vegetables, oats and barley, this fiber breaks down in the gut to release acetate. That travels to the brain, where the chemical prompts the release of hunger-fighting hormones.
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Health & MedicineSome of chocolate’s health benefits may trace to ‘bugs’
Dark chocolate offers people a number of health benefits. A new study finds that the breakdown of chocolate by microbes in the human gut be behind some benefits.
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Health & MedicineLow protein, longer life — for some
Eating less protein can lengthen life and improve health. That’s the message from new studies in mice and in people.