Dramatic Drop in Marijuana Use Among U.S. Youth Over a Decade: (2011 to 2021)

Among 88,183 U.S. high school students, marijuana use declined from 23.1% in 2011 to 15.8% in 2021, with first-time use before age 13 dropping from 8.1% to 4.9%. In 2021, use was highest among 12th graders (22.4%) and 11th graders (18.7%). Notably, girls (17.8%) surpassed boys (13.6%) in reported use in 2021, reversing past trends. While Asian, Hispanic, and white adolescents saw declines, Black adolescents had a higher usage rate of 20.5% in 2021, indicating ongoing racial disparities.

International Conference and Workshop on Enhancing Well-Being by Realizing Family Dynamics and Promoting Intergenerational Solidarity for an Inclusive Society

The College of Population Studies, Chulalongkorn University, in collaboration with the Department of Older Persons (DOP) under the Ministry of Social Development and Human Security, organized an international conference and workshop on “Enhancing Well-Being by Realizing Family Dynamics and Promoting Intergenerational Solidarity for an Inclusive Society.

U.S. Drug-related Infant Deaths More than Doubled from 2018 to 2022

Drug-involved infant deaths more than doubled (120% increase) from 2018 to 2022, with the greatest proportion of deaths in 2021 (25.8%). The most prevalent underlying causes of death included assault (homicide) by drugs, medicaments and biological substances (35.6%).

Study Underscores Social Factors of Low Breast Cancer Screening in the U.S.

To identify major social factors hindering breast cancer screening in U.S. women aged 40 and older, researchers focused on race/ethnicity, employment, education, food security, insurance status, housing and access to quality health care. Access to health care emerged as a statistically significant theme (61 percent) and insurance status was the most reported sub-categorical factor. Language was the third highest issue, highlighting its significance as an influential factor of screening behavior. Race/ethnicity, sex/gender and sexual orientation were additional factors reported.

Could Epigenetic Age Acceleration, Not Actual Age, Better Predict How Well You Remember?

A study led by researchers at Stony Brook University shows that age acceleration, when one’s so-called biological clock runs quicker than one’s actual age, is linked to poorer memory and slower rates of processing information. The team measured biological “clocks” derived from the DNA of 142 adults aged 25-65 years old and had the participants complete daily cognitive tests on smartphones. Their findings, which imply that epigenetic age acceleration could be a better indicator of how well a person remembers information and how quickly they work with information, are detailed in the Journal of Gerontology: Biological Sciences.

Can a Blood Test Detect Alzheimer’s Disease?

In July, the first direct-to-consumer blood test designed to assess a user’s risk for developing Alzheimer’s disease hit the market.

America on the Move: How Urban Travel Has Changed Over a Decade

A new study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab (including ride-hailing) trips has steadily increased.