If your immediate thoughts are about agriculture and farming when I mention the word ‘pesticide exposure’ you are absolutely right and farming is a sector that needs everyone’s attention but it also brings into limelight our limited knowledge with regards to pesticides. How about the regular pest control person who visits our apartments every once a while to ensure the safety of the premises or the one whom we see at parks tending to the needs of pest control? Don’t we ask the furniture guy whether the piece of furniture that we would be buying is guarded from pests and bugs? Pesticide exposure exists as an occupational hazard for not only those workers involved in the agricultural industry but also for millions of those involved in more than 100 other jobs such as pest control, park maintenance, wood preservation, etc. But don’t these workers wear masks and protective covering all over their body to safeguard themselves from exposure to these pesticides? Maybe they don’t because the latest study published in the Journal of the American Heart Association showed that job exposure to pesticides raised the risk of heart disease and stroke in healthy individuals.
The study findings are from the Kuakini Honolulu Heart Program that enrolled over 8,000 Japanese American men aged between 45 and 68 years during the time of study between 1965 and 1968. The study team examined the participants multiple times since 1968 with the team trying to analyze the reasons for cause of death and disease outcomes. The team measured pesticide exposure and found that in comparison to those men who did not face the risk of pesticide exposure during the first 10 years of follow-up, those with high pesticide exposure had a 45% higher risk of heart disease and stroke. No significant relationship between low to moderate exposure to pesticide and heart disease risk was observed. It is seen that pesticides have a long half-life (time required for a quantity to reduce to half its initial value and the term is often used to measure any type of exponential or non-exponential decay) and health hazards might show up only after years of exposure. As the research team followed up with the participants during various intervals of time, it was able to find that the maximum effect of exposure on heart disease and stroke risk happened during the first 10 years after 1968. But after more than 3 decades of following them, the researchers also were able to note that the link between exposure to pesticides at work and heart disease and stroke risk was no longer significant. This was due to the effects of ageing that had a much greater impact on health erasing the link that pesticides could have with heart disease risk. If you want to know what other effects ageing brings upon a person’s mental and physical health please visit the website www.firsteatright.com. Another study on Latino workers also measured occupational pesticide exposure and heart disease risk. Of the 7404 participants it was seen that one in 20 were exposed to chemicals and metals in workplace. Totally, over 6% of them suffered from some form of cardiovascular disease with coronary heart disease (4.3%) being the most commonly present health problem and atrial fibrillation least commonly (0.7%) present among participants. The study found that exposure to pesticides in the workplace increased the likelihood of coronary heart disease and atrial fibrillation (by four-folds) but not heart failure or cerebrovascular disease. It also doubled the risk of coronary heart disease. Until now we have different studies coming up with different results-men and women respond differently to pesticides, one class of pesticides gives heart attacks to women but not men, another group of pesticides might trouble men and not women and hormones too might have a serious role to play in the risk of cardiovascular disease due to pesticide exposure. While avoiding pesticide exposure is not possible for everyone these studies are clear indications to users motivating them to use personal protective equipment while handling pesticides.
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