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Any head injury — even a mild one — raises a person’s risk of later having an ischemic stroke. Having multiple injuries increases that risk, even more so than the severity of a single traumatic brain injury (TBI), researchers report. “Our study found that those who experience two or more head injuries, including even mild…  read on >  read on >

Air pollution has long been known to harm the heart and lungs, but new research suggests it might also raise the risk of breast cancer. Researchers at the U.S. National Institute of Environmental Health Sciences (NIEHS) and the National Cancer Institute (NCI) discovered that the largest increases in breast cancer incidence were among women who,…  read on >  read on >

A large number of drugs used to treat everything from multiple sclerosis to blood cancers to rheumatoid arthritis may cause a rare but often-fatal condition called progressive multifocal leukoencephalopathy (PML). But a simple genetic test can determine who has a 10-fold higher risk for developing this condition, which means those patients could discuss safer treatment…  read on >  read on >

Following an approval granted Monday by the U.S. Food and Drug Administration, the U.S. Centers for Disease Control and Prevention on Tuesday signed off on new COVID boosters for Americans. “We have more tools than ever to prevent the worst outcomes from COVID-19,” CDC Director Dr. Mandy Cohen said in an agency news release announcing…  read on >  read on >

For decades, sick people have been taking essentially worthless over-the-counter cold remedies to clear their stuffy noses, a key advisory panel for the U.S. Food and Drug Administration said Tuesday. The panel voted unanimously that nonprescription oral medications containing phenylephrine — including Sudafed PE, Vicks Sinex and Benadryl Allergy Plus Congestion — don’t do anything…  read on >  read on >

Bolstering the notion that a strong body equals a strong mind, new research indicates that the more inactive seniors are, the higher their risk for dementia. The finding stems from a look at the onset of dementia among nearly 50,000 Brits. All were at least 60 years old when information about typical daily activity routines…  read on >  read on >

It’s possible that the cause of spontaneous, recurring brain hemorrhages can be passed through blood transfusion, researchers say. The likelihood of this happening is very slim, however. Still, “blood transfusions are relatively common, which makes possible negative effects an important public health issue,” said study co-author Gustaf Edgren, a researcher at the Karolinska Institute in…  read on >  read on >