High cholesterol can have detrimental impacts on health, primarily by increasing the risk of cardiovascular diseases such as heart attack and stroke. High levels of LDL cholesterol, often referred to as “bad” cholesterol, can lead to the buildup of fatty deposits in arteries, resulting in atherosclerosis, which narrows blood vessels and restricts blood flow. Conversely, adequate levels of HDL cholesterol help to remove excess cholesterol from the bloodstream. Managing cholesterol levels through diet, exercise, and medication is crucial for maintaining heart health.