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For over a decade, scientists have been growing organoids—small clusters of cells that mimic a particular organ—to serve as miniature biological models. Organoids of the brain have been used to study neurodevelopmental disorders; intestinal organoids, to model celiac disease; and lung organoids, to investigate SARS-CoV-2. Heart organoids have even been sent to space to test the effect of microgravity on cardiac muscle. But there's a tiny problem—the organoids can't grow any bigger than a sesame seed.
Researchers from Kaiser Permanente Northern California reveal that adults aged 45 to 49 undergoing their first screening colonoscopy have neoplasia detection rates similar to those aged 50 to 54, supporting recent guideline changes to begin colorectal cancer screening earlier.
Researchers at the University of California San Diego School of Medicine have developed a gene therapy for Alzheimer's disease that could help protect the brain from damage and preserve cognitive function. Unlike existing treatments for Alzheimer's that target unhealthy protein deposits in the brain, the new approach could help address the root cause of Alzheimer's disease by influencing the behavior of brain cells themselves.
A small region of the brain, known as the ventral tegmental area (VTA), plays a key role in how we process rewards. It produces dopamine, a neuromodulator that helps predict future rewards based on contextual cues. A team from the universities of Geneva (UNIGE), Harvard, and McGill has shown that the VTA goes even further: It encodes not only the anticipated reward but also the precise moment it is expected.
Researchers estimate that there are at least 5.4 million U.S. children who provide care to an adult in their home. As state officials eye federal Medicaid funding cuts that could drastically reduce home care services for those who are disabled or have chronic health conditions, many predict that number will rise.
A Denver resident is the seventh Coloradan to get measles from a passenger on a Turkish Airlines flight last month—and they may have passed the highly contagious virus on to people at three stores along the Front Range.
New research shows that weight stigma—and not weight itself—has the biggest impact on mental health and healthy behaviors in the years after weight-loss surgery.
Navajo Nation leaders took turns talking with the U.S. government's top health official as they hiked along a sandstone ridge overlooking their rural, high-desert town before the morning sun grew too hot.
A major international study presented at the 62nd ERA Congress reveals that the long-accepted survival advantage of deceased-donor kidney transplantation does not extend equally to every patient and every donor organ.
Jail time has a huge effect on both an individual's and a community's long-term health, even after their release, a new study says.
GLP-1 (glucagon-like peptide-1) therapies can be powerful tools in managing obesity, with patients taking these medications seeing weight reductions of 5%–18% in clinical trials, along with increased metabolism and benefits to their overall heart health. However, GLP-1s can come with challenges, including gastrointestinal side effects, risk of micronutrient deficiencies, muscle and bone loss, poor long-term follow-through with weight regain if stopped, and high costs.
5 June 2025, Cairo, Egypt – World Environment Day 2025 will be observed on 5 June. Led by the United Nations Environment Programme (UNEP), this year's campaign focuses on tackling plastic pollution, urging countries, organizations, and individuals to act together to protect the planet. While plastics have benefits, including energy savings and resource conservation, the rising plastic pollution poses a significant threat to our planet and health. Around the globe, plastic pollution is contaminating water supplies, food sources, and the air we breathe. As plastics break down, they enter the food chain. Microplastics have been detected in human arteries, lungs, brains, and breast milk. Global plastic consumption is projected to reach 516 million tonnes this year, and if current consumption patterns continue, it will rise to over 1.2 billion tonnes annually by 2060. Environmental factors contribute to the deaths of about 13 million people worldwide each year. Almost half of these fatalities are attributed to air pollution. The health and economic costs of unhealthy air pollution currently amount to $2.9 trillion. On World Environment Day, we urge communities to advocate for lasting solutions to combat plastic pollution. Historically, recycling has been a key strategy for mitigating plastic waste. However, only 9% of plastics produced globally are recycled, and it is estimated that just 21% of plastic today is economically recyclable, meaning the value of recycled materials covers the costs of collection, sorting, and processing. The benefits of addressing plastic pollution include cleaner oceans and landscapes, healthier individuals and ecosystems, improved climate resilience, and stronger economies. Transitioning to Read more...
The sodium glucose cotransporter 2 (SGLT-2) inhibitor drug dapagliflozin, widely used to treat type 2 diabetes, also shows improvements for patients with progressive liver disease, finds a clinical trial from China published by The BMJ.
A study of almost 1,000 pregnant women in Zimbabwe found that a daily dose of a commonly used, safe and inexpensive antibiotic may have led to fewer babies being born early. Among women living with HIV, those who received the antibiotic had larger babies who were less likely to be preterm.
From 2014 to 2023, there was an increase in the percentage of infants delivered preterm, according to a report published in the June Health E-Stats, a publication of the National Center for Health Statistics.
On April 8, 2024, a once-in-a-lifetime total solar eclipse kept the eyes of millions of Quebecers riveted on the sky. But the experience left at least two among them—a 34-year-old man and a 17-year-old woman—with permanent retinal damage. They'd been gazing directly at the sun without wearing any protective eyewear.
A 1-unit increase in lead levels is associated with worse academic performance throughout school grades, according to a study published online May 28 in JAMA Network Open.
A new study conducted by researchers from Reichman University and other Israeli institutions explored the psychological aftermath of the deadly terrorist attack at the Nova Festival in southern Israel. The attack, which took place on October 7, 2023, claimed the lives of nearly 400 people and left hundreds more physically and psychologically wounded.
What you eat after a colon cancer diagnosis could do more than affect your energy or digestion—it might impact your chance of survival.