Heart attacks are more likely to occur in fall and winter, particularly in elderly people, according to a survey carried out by Athens University’s First Cardiology Clinic on 2,172 patients who had been treated for heart attacks at seven major Athens hospitals. In Greece, 22 of every 10,000 people enter hospitals every year with heart attacks. About half of these also had hypertension and/or high cholesterol levels and one third suffered from diabetes. The survey showed that those patients who exercised had a better outcome about a month after going to the hospital. Cycling and brisk walking are two forms of exercise which are considered good for the heart.