Teenagers who play video games for more than four hours a day suffer from symptoms of depression, but frequent use of social media and instant messaging may mitigate symptoms of game addiction in these teens, new Johns Hopkins Bloomberg School of Public Health-led research suggests.
More than two in three adults in the United States are considered overweight or obese, with substantial biomedical and clinical evidence suggesting that chronic overconsumption of a 'western diet' -- foods consisting high levels of sugars and fats -- is a major cause of this epidemic. New research by scientists at the University of California, Riverside now shows that chronic consumption of a western diet leads to overeating and obesity due to elevations in 'peripheral endocannabinoid signaling.'
This study shows how high estrogen release during the estrus cycle increases the pleasure felt via the brain's reward pathway
Some of the visual information our brains receive is potentially misleading. New research on fruit flies demonstrates how even a simple brain can filter out such misinformation, hinting at how our own brains might shape how we see the world -- and how we react to it.
Individuals with opioid use disorder who are treated with buprenorphine, a commonly prescribed drug to treat addiction, are more likely to disengage from treatment programs if they are black or Hispanic, unemployed, or have hepatitis C according to a study published online in the Journal of Substance Abuse Treatment.
A new study led by scientists at The Scripps Research Institute sheds light on how the brain stores memories. The research, published recently in the journal eLife, is the first to demonstrate that the same brain region can both motivate a learned behavior and suppress that same behavior.
In a survey of almost 2,000 people who said they had had a past negative experience when taking psilocybin-containing 'magic mushrooms,' Johns Hopkins researchers say that more than 10 percent believed their worst 'bad trip' had put themselves or others in harm's way, and a substantial majority called their most distressing episode one of the top 10 biggest challenges of their lives.
Marijuana use significantly increased and its perceived harm decreased among eighth- and 10th-graders in Washington state following enactment of recreational marijuana laws, according to a UC Davis and Columbia University study. There was no change in use or perceived harm among 12th graders or among similar grades in Colorado.
Drug misuse is so prevalent in Tijuana and East Los Angeles that community clinics in those areas should routinely screen for it. The researchers designed a simple tool that allowed participants to anonymously self-report substance abuse on a computer tablet with a touch screen in a discreet, non-threatening manner.
States that enacted medical marijuana laws, on average, experienced reductions in traffic fatalities, according to a study by researchers at Columbia University's Mailman School of Public Health. Overall, states that passed medical marijuana laws saw an 11 percent reduction in traffic fatalities, on average, after enacting the laws, and had 26 percent lower rates of traffic fatalities compared with states without the laws.