According to Greek mythology, Zeus punished Prometheus for giving fire to humans. He chained Prometheus and set an eagle to feast on his liver. Each night the liver grew again, and each day the eagle returned to its feast. In reality, can a liver really grow back? The liver is the largest internal organ in...
Rarely is there such precise historical information about the origin of an infectious disease as in the case of syphilis : in 1493, during the siege of the city of Naples by French troops. From there, it spread rapidly throughout Europe and Asia, causing one of the most devastating epidemics for humanity for several centuries, which ended when,...
“Medical illustrators draw what can’t be seen, watch what’s never been done, and tell thousands about it without saying a word.” For decades, this slogan appeared on the website and printed materials of the Association of Medical Illustrators. Although the association no longer uses this tag line, it’s still an accurate description of the profession....
More than 25% of the young adults surveyed in a recent study mistakenly believed that sexual activity increases older adults’ risk of heart attack and that disinterest in sex is a normal and inevitable part of aging. While most of those in the study had permissive views about sexual activity in later life, the findings...
Among the many emerging trends on social media, one recent concerning fad is a casual and often inaccurate portrayal of trauma and post-traumatic stress disorder, or PTSD – along with an array of questionable interventions suggested for its cure. But what really is PTSD, who suffers from it, and what are the available treatments? As...
Many people are wired to seek and respond to rewards. Your brain interprets food as rewarding when you are hungry and water as rewarding when you are thirsty. But addictive substances like alcohol and drugs of abuse can overwhelm the natural reward pathways in your brain, resulting in intolerable cravings and reduced impulse control. A...
The rising cost of health insurance is an ongoing concern in the United States. New research shows that increasing health insurance costs are eating up a growing proportion of worker’s compensation, and have been a major factor in both flattening wages and increasing income inequality over the past 30 years. In a study from the...
It’s winter, that cozy season that brings crackling fireplaces, indoor gatherings — and a wave of respiratory illness. Nearly four years since the pandemic emerged, people are growing weary of dealing with it, but the virus is not done with us. Nationally, a sharp uptick in emergency room visits and hospitalizations for covid-19, influenza, and...
In recent years, there has been rising concern that tiny particles known as microplastics are showing up basically everywhere on Earth, from polar ice to soil, drinking water and food. Formed when plastics break down into progressively smaller bits, these particles are being consumed by humans and other creatures, with unknown potential health and ecosystem...
An average of 22 adolescents 14 to 18 years of age died in the U.S. each week in 2022 from drug overdoses, raising the death rate for this group to 5.2 per 100,000– driven by fentanyl in counterfeit pills, new research finds. Adolescent overdoses had more than doubled among this group between 2019 and 2020,...
