Medical marijuana is legal in some form in 33 states, but relatively little is known about the availability of marijuana and use among younger people. A new study finds that younger adults who live in neighborhoods with more medical marijuana dispensaries use marijuana more frequently than their peers and have more-positive views about the drug. The associations were strongest among young adults who lived near dispensaries that had storefront signs.
Researchers cite Big Tobacco's marketing stronghold on African-American smokers among reasons why this group is 12% less likely to quit.
While the precise reasons are unclear, an analysis of overdose deaths in Rhode Island and Connecticut showed that cold snaps raised the risk of fatal opioid overdoses by 25%.
The use of cartoon characters in ads for e-cigarettes and e-liquids may be attracting young people to use the products in the future, according to a new USC study.
A new University of Michigan study challenges a popularized view about what's causing the growing gap between the lifespans of more- and less-educated Americans -- finding shortcomings in the widespread narrative that the United States is facing an epidemic of 'despair.'
A shift from brain systems controlling reward-driven use to habit-driven use differentiates heavy cannabis users who are addicted to the drug from users who aren't, according to a study in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, published by Elsevier. The findings help explain how the brain becomes dependent on cannabis, and why not all cannabis users develop an addiction, even with long-term regular use.
Cardiac MRI has a pivotal role to play in the diagnosis of cocaine-induced cardiovascular diseases, according to a new article.
A new study led by Dr. Matthew Rossheim in George Mason University's College of Health and Human Services found that Four Loko -- the brand of supersized alcopop most commonly consumed by underage drinkers -- is among the cheapest ready-to-drink alcoholic beverages available in the United States. Due to the link between lower alcohol prices and higher alcohol consumption and related harms, particularly among youth, this is a public health concern.
Overdoses and suicides were among the most common reasons for mothers dying within a year of giving birth in California, according to a new study from Michigan State University and the University of California, Merced.
Researchers say fears over smartphone 'addiction' are based on flawed evidence. Surveys are often used to understand how people use their smartphone, but these are poorly related to actual smartphone use when measured with an app. This means that existing evidence suggesting that screen time is 'addictive' cannot be used to justify any change of policy. High smartphone usage has been linked to anxiety and depression but there is insufficient evidence to support these conclusions.