The bags look like well-known chips or candies, but what’s inside could harm children

Those three letters stand for tetrahydrocannabinol, the part of the marijuana plant that makes people high. Eating even a small fraction of that bag would “overwhelm a child,” said Danielle Ompad, associate professor of epidemiology at NYU School of Global Public Health and senior author of a new study investigating copycat packaging in cannabis sales. … Read more

Even small amounts of exercise fight depression, study says

“Most benefits are realized when moving from no activity to at least some,” the study authors wrote. Recommended levels of exercise in the United States, according to the US Centers for Disease Control and Prevention, include aerobic activity at moderate levels (such as a brisk walk) for 2.5 hours a week, along with a workout … Read more

Sleeping with even a small amount of light may harm your health, study says

The dim light entered the eyelids and disrupted sleep despite the fact that participants slept with their eyes closed, said study author Dr. Phyllis Zee, director of the Center for Circadian and Sleep Medicine at Northwestern University Feinberg School of Medicine. Heart rate typically drops at night, slowing down as the the brain is busy … Read more

Guns overtake car crashes as leading cause of US trauma-related deaths, study says

In 2017, there were 1.44 million years of potential life lost due to firearm deaths, edging out that of motor vehicle crashes (1.37 million years), according to the study published Tuesday in the journal Trauma Surgery and Acute Care Open. And that trend continued in 2018. Those numbers are based on data from the US … Read more

Infertility treatments raise risk of heart and pregnancy complications, study finds

“Advancing maternal age — specifically being age 35 and older — increases the risk of having or developing conditions, such as chronic high blood pressure, that increase the risk of pregnancy complications,” said study author Dr. Pensée Wu, senior lecturer and honorary consultant obstetrician and subspecialist in maternal fetal medicine at Keele University School of … Read more

Childhood insomnia might not go away by adulthood, study says

Children who slept around seven hours or less when they were about age 9 were over two and a half times more likely to have insomnia in young adulthood (age 24 on average), compared with participants who had normal sleep during childhood, according to a new study published Thursday in the journal Pediatrics. Those who … Read more

Don’t postpone mammograms because of swollen lymph nodes after Covid-19 vaccine, study says

It’s common for mammograms to pick up swollen lymph nodes, also known as lymphadenopathy, after vaccination, said the study, published Tuesday in the journal Radiology. Swollen lymph nodes following a vaccination are a short-term, harmless sign that the vaccine is working. Many people noticed swollen lymph nodes after Covid-19 vaccines were rolled out, but they … Read more

E-cigarettes didn’t help smokers quit, study says

The study, published Monday in the journal BMJ, analyzed the latest 2017 to 2019 data from the Population Assessment of Tobacco and Health Study, which follows tobacco use among Americans over time. “This is the first time we found e-cigarettes to be less popular than FDA-approved pharmaceutical aids, such as medications or the use of … Read more

Dogs can recognize different languages and nonsense words, study says

They listened as a female voice recited a famous line from a cherished children’s book, “The Little Prince.” “It is only in the heart that one can see rightly; what is essential is invisible to the eye,” the soft voice said, first in Spanish, then in Hungarian. Then the voice began to recite a series … Read more