Health & Medicine
- Genetics
Almost all healthy people harbor patches of mutated cells
Even healthy tissues can build up mutations, some of which have been tied to cancer.
- Health & Medicine
Limiting global warming to 1.5 degrees C could prevent thousands of deaths in the U.S.
A study projecting heat-related mortality in 15 U.S. cities illustrates urban risk from global warming.
- Life
Gut bacteria may change the way many drugs work in the body
A new survey of interactions between microbes and medications suggests that gut bacteria play a crucial role in how the body processes drugs.
- Health & Medicine
A fungus weaponized with a spider toxin can kill malaria mosquitoes
In controlled field experiments in Burkina Faso, a genetically engineered fungus reduced numbers of insecticide-resistant mosquitoes that can carry malaria.
- Chemistry
Vaping the sweetener sucralose may produce toxic chemicals
Sucralose in e-liquids can break down, increasing toxic aldehydes in vapors and producing harmful organochlorines, including a potential carcinogen.
- Health & Medicine
Resurgence of measles is a tale as old as human history
Editor in Chief Nancy Shute discusses the recent global measles outbreak and the history of the spread of pathogens.
- Health & Medicine
One number can help explain why measles is so contagious
The basic reproduction number, or "R naught," of measles shows how contagious the disease is compared with other pathogens.
- Life
How bacteria nearly killed by antibiotics can recover — and gain resistance
A pump protein can keep bacteria alive long enough for the microbes to develop antibiotic resistance.
- Health & Medicine
Being bilingual is great. But it may not boost some brain functions
A large study of U.S. bilingual children didn’t turn up obvious benefits in abilities to ignore distractions or switch quickly between tasks.
- Health & Medicine
Faulty cellular antennae may cause a heart valve disorder
Mitral valve prolapse might be caused by dysfunctional primary cilia meant to signal cells during development.
- Health & Medicine
A cognitive neuroscientist warns that the U.S. justice system harms teen brains
The U.S. justice system holds adolescents to adult standards, and puts young people in situations that harm their development, a researcher argues.
- Science & Society
How the battle against measles varies around the world
Measles is a global health threat. Snapshots of several countries show how stopping its spread depends on local conditions and beliefs.
