my blood pressue is 130/80 using medications.....i take 3 in total,"amlodipine besylate 10mg" for the pressure, one as a diaretic "hydrochlorothiazide 25mg" and one to lower my heart rate,"atenolol 25mg" . is not getting my heart rate up while during cardio effective? ive been doing tread mills and bikes and my HR dont get over 100bpm. at rest its 65bpm. now ive been taking these meds for 6 months and my BP has never been this good. seems that i dont push my self hard enough doing cardio, is it just my lazy butt or is it do to the low HR? THANKS IN ADVANCE