Fact 8: Environmental Contributors
There’s a growing body of evidence suggesting that the environment, particularly the Western lifestyle, plays a pivotal role in Crohn’s onset. From dietary habits to antibiotic usage, and even hygiene practices, various facets of modern living might contribute to the increasing incidence of the disease.
One prevailing theory is the hygiene hypothesis. It posits that our ultra-clean environments, especially during childhood, prevent our immune systems from maturing. This lack of early exposure to certain microbes might set the stage for an overreactive immune response later in life, as seen in autoimmune diseases like Crohn’s.
Cigarette smoking stands out as a notable environmental risk factor. Not only does it increase the chances of developing Crohn’s, but smokers with the disease often face more severe symptoms and complications.
Interestingly, Crohn’s is more common in urban areas than rural ones and in northern climates compared to southern ones. These geographical trends point to environmental factors, potentially including levels of sunlight (vitamin D) and industrialization-related aspects.
Frequent antibiotic use, especially during childhood, has been linked to a higher risk of Crohn’s. These medications alter the gut microbiome, potentially paving the way for conditions like Crohn’s to take root. (8)
