Just remember your "top number" systolic is the pressure of the left ventricle pumping to get blood through to the body, so with "supps" the blood can get more viscous or thicker so its like running maple syrup trough a hose, if you keep the same pressure it will maybe trickle out , but if you increase pressure in your hose(hahaha) the syrup will run out like water, but you need a bigger pump to supply the pressure increase. The lower number is the pressure of the heart "at rest" pushing the blood around the heart and to the lungs. This one is a bit more to look at. But save the physiology, you definitely dont want to not be able to move the blood properly at rest. SO we look at the top number as slighly less problematic as the bottom...but there's a whole different story when we get numbers like 160/80 then 180 over 80. we don't want increasing pulse pressure either. In summary , I would say in my opinion if for 8 weeks your pressure is up 150/90 or so and you luckily eat right and have no blockage you should be ok. When supps stop and it goes to 120-30 / 60-80, you'll be right. The problem is when bbers like us have a 150/100 or 160/90 and squat..now our blood pressure skyrockets for a set and could cause damge..I could go on forever..now i am not making sense anymore. just keep weekly readings at the same time with the same eqipment(right size cuff) and average the readings over 4 or 5. The AHA is trying to get the BP numbers down as normal so 120/70 won't be perfect anymore. Hope this helps some. Tryin to keep it as layman as possible