Health & Medicine
Scratching an itch has both good effects and bad
Mice that scratch itchy ears trigger more redness and swelling — but also may combat harmful bacteria.
Humans
More Stories in Humans
- Humans
Biological sex is more complex than just male or female
Trying to define sex with just two options fails to reflect the wide range of natural variation in human genetics, hormones and biology.
- Environment
More and more, microplastics are collecting in our brains
Over eight years, the mass of microplastics in human brains increased by some 50 percent. There are growing hints that internal microplastics may harm us.
- Brain
Brain scans may offer clues to the mental health of trans youth
A teen researcher identified a possible link between brain development and mental health in young trans people.
- Animals
Mosquitoes taste you before they decide to bite
Mosquitoes seem to prefer some flavors over others. Knowing what they like — and hate — could lead to better ways to prevent bites.
- Brain
Scientists Say: Neuroplasticity
Neurons in the brain forge new connections and sometimes trim back old ones. This capacity for change allows us to learn new skills and recover from injury.
- Health & Medicine
This Indigenous herb may improve therapy for muscle disorder
Treating weakened fruit flies with an herb-drug combo was more effective than the usual drug-only treatment.
- Artificial Intelligence
AI-designed proteins target toxins in deadly snake venom
The current way to produce antivenoms is outdated. In lab tests, AI-designed proteins could save mice from a lethal dose of snake toxin.
- Health & Medicine
2025’s Texas measles outbreak is a lesson in the value of vaccines
The outbreak shows that a near absence of once-common childhood diseases — like measles — is not evidence that vaccines are unnecessary.
- Brain
Explainer: How our body deals with stress
Our autonomic nervous system balances two natural responses. If stressed or overwhelmed, simple techniques can help to restore that balance.
