According to the British Medical Association, cycling just 20 miles a week can reduce the risk of coronary heart disease by 50%. A major study of 10,000 civil servants suggested that those who cycled 20 miles over the period of a week were half as likely to suffer heart disease as their non-cycling colleagues.

Cycling makes the heart pound in a steady manner and helps improve cardio-vascular fitness.  Studies have shown that cycling to work will increase cardiovascular fitness by 3-7%. Cycling uses the largest muscle groups the legs, raising heart rate to benefit stamina and fitness.