Research Studies

Clinical Trials Epidemiology Health Research Longitudinal Studies Psychological Research AI Research Health Studies Public Health Research Public Health Meta-Analysis

Study Finds Regular Los Angeles Fentanyl Users Consume Nearly 9,000 MME Daily

The finding suggests extreme tolerance that may require new approaches to starting and managing medications for opioid use disorder.

Sea Cucumber Tissue Survives and Stays Active for More Than Three Years

Prenatal High-Dose Vitamin D Linked to Small Memory Gains at Age 10

Second Pregnancy Triggers Distinct Brain Rewiring, Dutch MRI Study Finds

New Studies Project 7%–16% of Plant Species Will Lose Nearly All Habitat by 2100

Warm Deep-Ocean Water Is Shifting Toward Antarctica, First Observations Show

Beer’s Vitamin B6 Claim Gets a Reality Check From Health Experts

Study Finds AI Chatbots Flatter Users Into Justifying Wrongdoing

Danish Study Ties Firstborn Earnings Edge to Early Infections in Younger Siblings

Beating Heart Mechanically Suppresses Tumor Growth, Helping Explain Rare Cardiac Cancers

Teen Cannabis Use Tied to Slower Cognitive Growth in Largest U.S. Youth Brain Study

Brief AI Assistance Lowers Persistence and Hurts Solo Performance, Study Finds

Loneliness Linked to Lower Memory in Older Adults, Not Faster Decline, European Study Finds

Nature Study Finds ‘Subliminal Learning’ Lets LLMs Inherit Hidden Traits From Synthetic Data

Study Redates Chile’s Monte Verde to Under 8,200 Years

Beef Tops Global List of Agriculture-Linked Deforestation Drivers, New Study Finds

Rising Heat Poised to Drive Global Inactivity and Deaths by 2050, Lancet Study Finds

Study Finds Democracy’s Deep Global Roots in Ancient Societies

Nearly Half of Older Adults Improved Cognition or Walking Speed in Long U.S. Study

Rare CHRNB3 Variant Linked to Much Lower Cigarette Use, With Cross-Ancestry Evidence