Medical experts have warned in World Stroke Week, which ends on Tuesday, that many people expect the symptoms of a stroke to be a dramatic collapse or major seizure “however, very often the first sign of stroke could be as subtle as only experiencing a weakness in an arm or down one side of the body, one side of the face sagging, or a severe headache,” said Prof Andre Mochan, a neurologist at Netcare Rehabilitation Hospital in Johannesburg. Mochan added that “what is important to note, and is not widely realised, is that most strokes are preventable by leading a healthy life and by treating and managing risk factors like high blood pressure, cholesterol, and diabetes in association with your doctor.