Heat and BP

redherring · 06-13-2005, 09:13 PM

Okay, I need some input from the veterans of this forum

. Can being in a hot room alter BP readings? It's hot where I live and I took my BP and it was 141/80. I've been running at 119-125 over 70-80 the last couple of weeks. TIA

redherring · 06-13-2005, 09:17 PM

Oh and I just ate too. Does eating cause a BP spike too?

Uff-Da! · 06-13-2005, 11:52 PM

I don't know if being in a hot room would cause it. I thought being in a cold room would, though. After most meals, my BP goes down. But occasionally, it will go up. I suspect those meals contain some food to which I'm allergic. At any rate, I'm keeping a list of foods I ate in such meals to see if I can determine which specific foods cause it.

zuzu8 · 06-14-2005, 01:46 AM

Usually if you are in an overheated room (or even in a hot tub) blood pressure often will get too low because the heat causes your blood vessels to dilate, resulting in blood being more concentrated in your skin instead of your internal organs. That's why we often feel lightheaded if we stay too long in a hot tub for instance. BP plunges!

So the 141 "spike" might have more to do with having just eaten. I know that doctors prefer to take BP at least a 1/2 hour before or after a meal.

I wouldn't worry at all about the temp spike you had. Your average #s are terrific!

zuzu xx

red-rider · 06-14-2005, 06:45 AM

Hi redherring~I have always heard that heat makes our pressure lower. Last summer my son played in a 2 month baseball tournament in June and July~some days it was over 100! my bp did not go down~it was the same as usual. I did drink plenty of cold water and kept a wet bandana around my neck~so that hepled. Food DEFINITELY makes my bp higher. The worst spike I ever had (was just last week). It occurred after a hearty/salty meal and after I took a calcium tab on top of all the food. Scared the crud out of me. Since then~my meals are way smaller and less saltier. Im also eating slower. These are good habits for all to keep~especially those of us who have high bp-or spikes. Food and drink is a trigger of mine~and Im glad to be aware of it. Iced tea is my favorite beverage~but I drink decaff tea(and coffee) or I would be bouncing off the walls

RR