I am a 63 year old man that has trouble controlling my hypertension for years. I notice that after 30 minutes of exercise on my elliptical machine that my blood pressure can drop significantly: example before exercise = 150/95 and 30 min after exersize = 100/60. I mentioned this to my cardiologist and he said that blood pressure goes up not down, but gave no further comment. Can anyone help explain what causes this and should I be concerned? 50 point drop in systolic pressure seems extreme.