4 ms·Unless you're a chipmunk that's an impressively and worryingly high rate.by astrodust 7y agoUnless you're a chipmunk that's an impressively and worryingly high rate.gowld 7y agoOne presumes that's what the beta blockers are for.astrodust 7y agoChipmunks?wazoox 7y agoYup. With beta blockers I have a perfectly healthy heart rate and blood pressure. Other products work well for the blood pressure in my case, but not the heart rate.