Humans
- Neuroscience
Hormone hampers effects of marijuana
Study of pot-blocking brain chemical in rodents could lead to new treatments for cannabis addiction.
- Microbes
Gut bacteria respect diets, not borders
Malawian and Guahibo gut microbiomes resembled those of herbivorous mammals, while American guts were more similar to carnivores’.
- Health & Medicine
Nanoparticle injection blocks breast cancer growth in mice
A nanoparticle-based therapy delivered directly to the mammary ducts could potentially stop pre-cancerous cells from becoming full-blown breast cancer, scientists say.
- Health & Medicine
Distractions raise crash risk for newly licensed drivers
The risk of a crash or near-crash for newly licensed drivers is tripled or greater when they are eating, texting or rubbernecking, researchers report.
- Health & Medicine
Vitamin E might limit Alzheimer’s decline
A trial of vitamin E in elderly veterans with Alzheimer’s shows promise for those in the early stages of the disease.
By Nathan Seppa - Humans
Mother lode
Certain sugar molecules in human breast milk do more to foster beneficial microbes, and banish harmful ones, than they do to nourish newborns.
- Microbes
The vast virome
When it comes to the microbiome, bacteria get all the press. But virologists are starting to realize that their subjects also do a lot more than make people sick.
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- Psychology
Year in Review: DSM-5’s controversial debut
The diagnostic manual updates disorder criteria.
By Bruce Bower - Health & Medicine
Year in Review: Putting kids at risk
U.S. parents increasingly are delaying their children’s vaccination.
By Nathan Seppa - Neuroscience
Bad memories fade with a short jolt
Research illustrates the vulnerability of the brain’s information storage.