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Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
- Health & Medicine
These bubbles treat wounds
New research shows bubble-powered drugs can travel upstream, against the flow of blood, to seal wounds shut.
- Animals
Hummingbird tongues may be tiny pumps
Scientists had thought that hummingbird tongues work through capillary action. A new study, though, concludes they work like little pumps.
- Health & Medicine
Explainer: The nico-teen brain
Both e-cigarettes and tobacco products can release large amounts of nicotine during use. Nicotine is the chemical that makes tobacco addictive — and the teen brain is especially vulnerable to it.
- Health & Medicine
Catching ZZZs may retrieve lost memories
Forgetful? Maybe you’ve forgotten to get enough shuteye. A study in fruit flies suggests that a good sleep can boost their ability to remember things.
- Brain
Scientists Say: Blood-brain barrier
Blood can contain nasty bacteria and other things you want to keep away from your delicate brain. The blood-brain barrier is up to the job.
- Health & Medicine
Peanuts for baby: A way to avoid peanut allergy?
Making peanut products a baby food could head off life-threatening peanut allergies later, new data show.
- Health & Medicine
Vision-ary high tech
New devices are being developed to improve, restore or preserve the vision of people with eye diseases, such as glaucoma and macular degeneration. One device is a telescopic contact lens than can be zoomed with a wink.
- Animals
Resilient hearts for deep-sea divers
How do aquatic mammals have enough energy to hunt prey while steeply dropping their heart rate to stay underwater? A new study of dolphins and seals provides clues.
- Agriculture
Livestock: A need to save rare breeds
New studies and ongoing work highlight why society should save rare livestock breeds — and the part that technology can play.
- Environment
Nano air pollutants strike a blow to the brain
Most people think that air pollution poses the biggest risk to our lungs. In fact, pollution hits the brain too, sometimes by traveling a direct route — through our noses. These tiny pollutants can harm IQ and more.
- Tech
Fashioning inks to ‘print’ tissues
3-D printing may one day create life-saving tissues and organs for transplants. But first researchers are learning how to tailor cell-filled “inks” for use in inkjet printers.
- Health & Medicine
Young blood: The elixir of youth?
Old mice show improved memory when blood from young mice circulated through their brains, a new study finds. Other studies suggest one ingredient in that young blood might be all it takes to deliver benefits.
