2024 brought significant health stories to the forefront. Topics included the dangers lurking in our drinking water, the resurgence of bird flu, and the rising use of obesity drugs. The impact of extreme heat on public health was also discussed, highlighting the urgent need for climate action. Additionally, fluctuating trust in scientists post-pandemic plays a critical role in public health discourse. These issues are shaping the future as we head into 2025, highlighting the intersections of health, environment, and policy.
2024 saw increased scrutiny of drinking water quality in the U.S., especially regarding harmful substances like PFAS and lead.
Obesity drugs gained unprecedented popularity in 2024, leading to proposals for extended insurance coverage and challenges in medication access.
Deep dives
Emerging Drinking Water Concerns
This year has seen increased scrutiny over the contents of drinking water, particularly concerning harmful substances like PFAS and lead. The EPA enacted new regulations aimed at limiting PFAS, known as 'forever chemicals' due to their persistent nature in the environment and their links to serious health issues like cancer and immune response suppression. Moreover, a separate rule was introduced to tackle the issue of lead pipes, necessitating the replacement of over nine million such pipes still in use across the U.S. Despite these advances, uncertainty looms about the future of these regulations under potential changes in federal administration and ongoing legal challenges.
The Resurgence of Bird Flu
Recent reports highlight an uptick in bird flu infections, notably among agricultural workers, leading California to declare a state of emergency. The current strain, H5N1, while not evolved to spread easily among humans, has resulted in several human infections, raising concerns about its potential to mutate. The case of a critically ill teenager in Canada serves as a reminder of the virus's unpredictability and the risk of genetic reassortment with seasonal influenza. As monitoring efforts continue into the coming year, the focus remains on how the virus may evolve and the implications for public health.
The Growing Obesity Drug Market
Obesity drugs like Ozempic and Wegovi have surged in popularity, leading to unprecedented demand and prompting pharmaceutical companies to ramp up production. Initially developed for diabetes management, these medications act by mimicking hormones that regulate insulin and appetite, proving effective for weight loss. The limited availability of these medications has resulted in compounded versions being produced as a stopgap, although this leads to confusion and limited access for many patients. Amid these dynamics, the Biden administration has proposed extending insurance coverage for obesity treatments, while the market is poised for further expansion and potential challenges in 2025.
2024 was full of science news. There was a total solar eclipse, the Paris Olympics, elections in the United States and elsewhere, technological breakthroughs and many space launches. But perhaps above all, it was a huge year in health. So, today, we're talking through some of 2024's biggest health stories — from what's in our drinking water supply, to bird flu, obesity drugs and this year's record heat. They're also the stories we think will continue to be big in 2025. See you in the new year, Short Wavers! <3
Questions or suggestions for what else we should cover? Email us at shortwave@npr.org!
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