Anecdotally I find my blood pressure (measured with a regular upper-arm cuff while sitting) to often be lowest soon after completing a workout, like a hard 5K run outside. I'm not sure why, maybe the vasodilation effect from increased nitric oxide production?
IANAM, but if cardiac output is constant (say) and HR ↑ then you would expect BP ↓. I think that indicates good health too, that you don't need increased output, HR is just increasing to move oxygen around faster.
Yes, it indicates good health. Flexible arteries are healthy arteries. If you have high BP at night when sleeping that is very unhealthy. I urge anyone who has high blood pressure readings to get a 24 hour BP monitor to rule out labile hypertension.
