Widespread Herbicide Use Linked to Teen Brain Function Decline

Shutterstock.com

Scientists at the University of California San Diego have uncovered troubling links between common herbicides and a decline in brain function among teenagers. They looked at two common weed killers: glyphosate and 2,4-D.

In Ecuador, where these weed killers are extensively used, researchers studied 519 teenagers. What they discovered is alarming – nearly all of these teens (98%) had traces of glyphosate, and a significant number (66%) had detectable levels of 2,4-D in their bodies.

The scientists then assessed how well these teenagers’ brains were functioning, looking into areas like attention, memory, language skills, and social perception. 

The results were also troubling. Those with higher levels of 2,4-D didn’t perform as well in attention, memory, and language tasks. Similarly, higher levels of glyphosate were associated with challenges in understanding social cues.

The study also pointed out a worrying trend – the increased use of these weed killers due to genetically modified crops resistant to them. These crops, known as “Roundup-ready” for glyphosate and 2,4-D resistant, have led to a surge in the use of these herbicides globally. This could have potential health effects, especially during important growth phases like adolescence.

The researchers urge further investigation into the safety of these chemicals and their long-term effects on human health. The complex landscape of numerous chemicals, with limited knowledge about their safety, adds another layer of concern.

The study draws attention to the rising challenges in mental health among teenagers and young adults globally. With significant percentages facing diagnosable mental health conditions, scientists are exploring links between these conditions and environmental factors, such as exposure to weed killers.