High cholesterol can lead to increased risk of cardiovascular diseases such as heart attacks and strokes. Elevated levels of low-density lipoprotein (LDL) cholesterol can result in the buildup of plaque in arteries, narrowing them and reducing blood flow. This can cause hypertension and strain the heart. Additionally, high cholesterol could lead to atherosclerosis, where arteries become hard and stiff, further complicating cardiovascular health. Regular check-ups and dietary adjustments, including increased intake of healthy fats and fiber, can help manage cholesterol levels, thus mitigating cardiovascular risks.