Health & Medicine
- Neuroscience
The herbal supplement kratom comes with risks
The supplement kratom can cause heart racing and agitation.
- Neuroscience
Dead pig brains bathed in artificial fluid showed signs of cellular life
Four hours after pigs died, the animals’ brain cell activity was restored by a sophisticated artificial system.
- Health & Medicine
‘Added sugar’ food labels may prevent heart disease and diabetes
Nutrition labeling changes that highlight sugar added to food or drink may have large benefits for public health, researchers say.
- Health & Medicine
People with stress disorders like PTSD are at higher risk of heart disease
Those coping with psychological trauma have a greater risk for cardiovascular disease, a large-scale study that goes beyond men and veterans finds.
- Health & Medicine
U.S. measles outbreaks show no signs of slowing down
This year’s measles cases have blown by 2018’s total, raising the specter that the disease could once more become endemic in the United States.
- Genetics
Some people may have genes that hamper a drug’s HIV protection
Newly discovered genetic variants could explain why an anti-HIV medication doesn’t protect everyone.
- Health & Medicine
NASA’s Twins Study reveals effects of space on Scott Kelly’s health
Ten research groups studying the twin astronauts found long-term spaceflight can alter a person’s physiology and gene activity.
- Health & Medicine
Ketamine cultivates new nerve cell connections in mice
In mice, ketamine prods nerve cells to connect, which may explain the hallucinogenic drug’s ability to ease depression.
- Health & Medicine
Chickens stand sentinel against mosquito-borne disease in Florida
To learn where mosquitoes are transmitting certain viruses, Florida officials deploy chickens and test them for antibodies to the pathogens.
- Health & Medicine
A common food additive may make the flu vaccine less effective
A food preservative may impair the ability to fight the flu, a study in mice suggests.
- Health & Medicine
When an older person’s brain waves are in sync, memory is boosted
A brain stimulation treatment that nudges older people’s brain waves into sync could lead to noninvasive therapies for dementia and other disorders.
- Health & Medicine
Readers seek answers to stories about shingles, Neandertal spears and more
Readers had questions about Neandertal spears, Earth’s inner core and more.
