Complex sentence: Hypertension usually does not cause symptoms, but it is a major risk factor for hypertensive heart disease, coronary artery disease, stroke, aneurysms of the arteries (e.g. aortic aneurysm), peripheral artery disease and chronic kidney disease.
Split into simpler sentences: Hypertension usually does not cause symptoms, but it can lead to hypertensive heart disease or coronary artery disease. It is also a major risk factor for stroke, aneurysms of the arteries (e.g. aortic aneurysm), peripheral artery disease and chronic kidney disease.