While undergoing magnetic therapy, one may experience various side effects: sleepiness and deep relaxation during individual sessions are common, so that one may feel dizzy or even collapse after sudden sitting or standing up. So take your time after the procedure. One may also experience headaches, nausea or diarrhoea. Unless these conditions are very severe, they do not substantiate the interruption of magnetic therapy as they usually pass quickly. Patients with joint or back pains may experience a temporary worsening of their condition at the beginning of the therapeutic series. This later disappears and the pains subside considerably.