Mr. Liu, a 65-year-old man, discovered during a routine check-up that he had atherosclerosis in his neck arteries. In his search for solutions, he learned from a neighbor that drinking vinegar could soften the arteries. However, his reassessment showed that not only had the plaques not decreased, but they had actually increased. Additionally, Mr. Liu developed gastric ulcers due to the acidity of vinegar.

This highlights the importance of understanding arterial plaque and its effects on health. 

1. Causes of Arterial Blockage 
Unhealthy lifestyle choices, including smoking, alcohol consumption, and a diet high in saturated fats and sugar, can lead to changes in blood vessels.

This causes the formation of lipid plaques, which can lead to atherosclerosis. These plaques can narrow and block arteries, potentially leading to various health issues such as peripheral arterial disease and stroke. 

2. Effects of Arterial Plaque 
When arterial blockage occurs in the lower limbs, it can result in coldness, numbness, pain, and even tissue damage. Blockages in the carotid arteries can cause speech and coordination problems, and may lead to coronary artery disease or transient ischemic attacks.

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