Research links 150 million mental disorders to leaded gasoline
More than 150 million psychiatric diagnoses in the USA may be linked to leaded gasoline, which was commonly used for refueling cars for several decades, according to new research. Scientists have demonstrated how lead affects our brains.
The results of the new study, published in the scientific journal "The Journal of Child Psychology and Psychiatry," indicate that about 151 million mental disorder diagnoses in the United States can be attributed to the lead found in gasoline.
Researchers compared blood lead levels with historical data on leaded gasoline, allowing them to estimate the impact of lead on children's mental health from 1940 to 2015.
Although leaded gasoline was phased out in the USA in 1996, its effects are still evident today. Dr. Aaron Reuben, a neuropsychologist, emphasizes that millions of Americans may be experiencing impaired cognitive function due to prolonged exposure to lead. Studies suggest that lead may contribute to the development of depression, ADHD, and also affect personality by making people less conscientious and more neurotic.
Not just emissions
New research also reveals other sources of lead exposure, such as children's clothing, everyday household items, and even food products. The high concentrations of lead in these items can lead to serious health problems, including fertility disorders and premature births. Children are particularly vulnerable to the harmful effects of toxins, making this issue even more alarming.
Dr. Bruce Lanphear, a lead poisoning specialist, notes that while the studies were conducted meticulously, not all possible sources of lead exposure were considered, which may mean the problem is underestimated. Symptoms of lead poisoning include headaches, abdominal pain, nausea, and in severe cases, can lead to kidney failure and nervous system damage.
As CNN reminds us, leaded gasoline was used from the 1920s, and its phasing out began in the 1980s. Nevertheless, lead is still present in some airplanes and agricultural equipment, highlighting the need for further action to protect public health.
