This past week here in Massachusetts has been hot. Really hot. And humid. As much as I like warm weather, temps in the 90s and high dew points are not my preference. Low 80s with a light breeze and sunshine is my favorite kind of day. Just right for my Raynaud’s, no need for air conditioning, which is a whole other topic (as in, I hate it unless it’s a sweltering 90+ degree day with high humidity).
As it was, I had to break down and put on one of our heat pumps, which doubles as an air conditioner, or I would not have been able to function. The heat pump in our living room is powerful enough to cool the entire first floor. Later in the day, I would turn on the pumps in two of the upstairs bedrooms to reduce the heat that had risen to the second floor. Our attic fan helped, too.
Overall, pretty effective strategy. But the heat still left me feeling drained.
On Monday, I learned that there was another reason that the weather left me dragging. I had a check-up with my wonderful Boston Medical cardiologist, and in the course of our conversation, he told me that one of my medications, a calcium channel blocker, Diltiazam, which has worked miracles for my heart issues, can also make you feel light-headed in high heat. The drug lowers blood pressure, so if you perspire a lot and don’t drink enough fluids, your BP can drop even further.
I never got to the point of feeling faint, but I definitely felt off during the heat wave (and we have another few days on the way). I’m always drinking seltzer, so I never was really dehydrated. But on one day in particular, when I misjudged the humidity and left windows open overnight, I perspired a lot, which I rarely do, and felt more draggy. So, now I know better.
Which brings me to my main point: In extreme heat, which is becoming more common in summers as our planet warms, it’s really important to know how your meds can affect your body’s ability to regulate itself. Here’s a good overview from Scientific American.
So, Dear Reader, please be informed, stay hydrated, and stay as cool as possible during what promises to be another record hot summer. And, when the temps look daunting, here’s a Broadway cast recording of Too Darn Hot by Cole Porter, from the musical Kiss Me Kate, to help you chill. Be well.
Evelyn Herwitz blogs weekly about living fully with chronic disease, the inside of baseballs, turtles and frogs, J.S. Bach, the meaning of life and whatever else she happens to be thinking about at livingwithscleroderma.com. Please view Privacy Policy here.
Image: Library of Congress
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