Elite performance takes natural ability coupled with elite levels of training. That last part has an effect later in life, according to a new analysis. It found that one in four retired Olympians have some level of osteoarthritis, which causes changes in the joint and can lead to discomfort, pain and disability.
A new paper accompanied by a scary-looking map claims "people who lived in cities with lead-contaminated water as children had worse baseline cognitive functioning at age 72" and may make every new parent worry their child's grades can be blamed on the water supply, but it leaves out important scientific context.
A clinical trial where dogs get advanced cancer treatment could pave the way for a new immunotherapy treatment in kids. 

Sarcoma is a cancer of the bones and soft tissues and one of the most common childhood cancers, the third most common cancer in children, with one in three dying from their disease. The first step for almost all sarcoma patients after diagnosis is surgery to remove the tumor. 
A new study says early intervention with cryoballoon catheter ablation (cryoablation) can halt disease progression and reduce risk of serious health impacts of atrial fibrillation(AF).
Age is relative. If you put two people the same chronological age next to each other, one may look younger while one may nonetheless be biologically younger. Yet age is the biggest risk factor for most diseases even though it doesn't tell much of a health story.

Population statistics about age are as pointless in individual care as most epidemiology, but they can provide proxies for biological aging that at least have people taking important things for their future, rather than placebos like a USDA food servings chart.
One of the largest mass extinctions ever is bad. Six marine extinctions is even worse. That all happened in one period now known as The Devonian Period, 419 to 358 million years ago.

Yet that is also when the world got the trees and complex land plants similar to those we know today first evolving and spreading across the landscape. Those complex root systems affected soil biogeochemistry and set off part of the chain that allowed humans to thrive.
Humanity progresses thanks to the diffusion and sharing of human knowledge. In particular, scientific progress is brought forth by the sharing of ideas, measurements and experimental results among scientists, and the distribution of excellent education. We have grown very good at doing that, but can we improve the sharing of knowledge for the common good? 

The answer is certainly yes, as the interconnection of the scientific community and the interdisciplinarity of its efforts are hampered by borders, language barriers, cultural differences, political influences, religious hindrances, education system challenges, and also by different conventions, policies, metrics in the different areas of scientific research.
In 2022, the United States surpassed one million COVID-19 related deaths. Many of them had co-morbidities that are risk factors for many diseases, like old age, cancer, or respiratory issues.

Added into those risk factors were lifestyle diseases like obesity, type 2 diabetes, and smoking, all of which are linked to poorer outcomes from COVID-19 infections. Those have all long been linked to negative health outcomes, which is why we have advocated for exercise, sensible diets, and giving up cigarettes as first lines of defense against many future problems.
A new paper describes the perfect combination of genetic alterations that tumors use to promote explosive growth and prevent their own demise, a development that could change the way oncologists understand and treat melanoma.

Telomeres, protective caps at the of the end of the chromosome, are required to prevent DNA from degrading. In healthy cells, telomeres become shorter with each cycle of replication until they become so short that the cell can no longer divide. Disruptions in maintenance of the length of the telomeres can lead to severe disease. Short telomere syndromes lead to premature aging and death, but extra-long telomeres are associated with cancer.
If you have ever visited or Florida or any place with rainfall extremes at sub-hourly timescales - short storms - residents joke that if you don't like their weather, wait five minutes and it will change.

A new analysis says those changes may be happening quickly, and are intensifying much faster than those on longer hourly or daily timescales. Which means greater chance for damaging environmental hazards like flash flooding. If these intense short-duration precipitation events are being affected by our changing climate. understanding them is crucial for effective climate adaptation and mitigation.