A person is said to suffer from palpitations if their heart rate exceeds 100 beats per minute during periods of rest. The nervous system that controls the heartbeat is made up of the ‘cardionic system’ and the ‘sympathetic nervous system - parasympathetic nervous system’. Palpitations can be caused by facts or by heart problems, so it's important to consult a doctor as soon as you suspect something... Hygiène et santé" programme, broadcast on Don Bosco radio.