What Causes Arteries to Become Clogged?
Atherosclerosis is a gradual process that develops when cholesterol, fats, inflammatory cells, and other substances accumulate within the walls of the arteries. Over time, these deposits form plaques that can narrow the blood vessels and restrict the flow of oxygen-rich blood to vital organs.
Several factors can increase the likelihood of developing this condition. High LDL cholesterol, high blood pressure, diabetes, smoking, obesity, and physical inactivity are among the most important risk factors. Age and family history also play a role, meaning some people may have a higher risk even if they maintain a relatively healthy lifestyle.
One of the greatest dangers of atherosclerosis is that it may progress for years without producing noticeable symptoms. In some cases, a plaque ruptures and triggers the formation of a blood clot, suddenly blocking blood flow. This can cause a heart attack or stroke, even in someone who previously felt healthy.