My heart rate and blood pressure monitors arrived. I really like both, they were very easy to use. I thought it was going to be more complicated. I got a Polar h.r. watch and a Omron b.p. monitor. If anyone wants reccomendations, I can look up the exact models I bought. Thanks to all those who gave me recommendations. I tried a quick at-home tilt table test but didn't do the laying down for a long period in advance first, so I will have to repeat it later. Plus I only stood 10 minutes so I may try it again standing longer, it felt uncomfortable just standing still even for the 10 minutes. So my question: Using the heart rate monitor for activity, how does that work? How do you calculate how high it's okay for your heart rate to go? I saw some formulas that said 60% of 220 or 200 minus your age. Does that sound right? Mine goes up so high so fast when I do anything. If those formulas are right then I go over mine by just standing up.