PFAS chemicals seemed like a good idea at first. As Teflon, they made pots easier to clean starting in the 1940s. They made jackets waterproof and carpets stain-resistant. Food wrappers, firefighting foam,…




PFAS chemicals seemed like a good idea at first. As Teflon, they made pots easier to clean starting in the 1940s. They made jackets waterproof and carpets stain-resistant. Food wrappers, firefighting foam,…
A collection of photos of genetically unrelated lookalikes, along with DNA analysis, revealed that strong facial similarity is associated with shared genetic variants. The work appears August 23rd in the journal Cell Reports.…


Marijuana and hallucinogen use in the past year reported by young adults 19 to 30 years old increased significantly in 2021 compared to five and 10 years ago, reaching historic highs in…
Pancreatic cancer has few treatment options and limited survival, with only 9% of patients still living five years after diagnosis. But a detailed analysis of pancreatic cancer by researchers at Washington University…
The deadliest form of brain cancer returns because tumours adapt to treatment by recruiting help from nearby healthy tissue, say researchers who are trying to find a cure for the disease. A…


A new national survey reveals considerable differences between psychiatrists’ perceptions about the safety and therapeutic value of certain psychoactive drugs and how those same drugs are categorized under U.S. policy. For example, the…


More than six percent of Americans will develop posttraumatic stress disorder (PTSD) in their lifetime. This potentially chronic condition disrupts lives, and can lead to or exacerbate existing health issues such as depression, anxiety,…
A meta-analysis comparing differences in the prevalence of hypertension between urban and rural areas in low- and middle-income countries (LMICs) concludes that the prevalence of hypertension increased between 1990 and 2020 in both…


A model of COVID-19 dynamics in South Africa reveals epidemiological characteristics of the main SARS-CoV-2 variants of concern and highlights their potential to cause further outbreaks. The findings highlight the need for…