Living in Cypress means learning to respect the heat. Most people think about heat in terms of comfort, but I think about it in terms of blood pressure, medications, and hydration. Summer here is long, and it is easy to underestimate what that does to your body.

Heat makes your blood vessels dilate, which can lower blood pressure. That sounds good on paper, but for some patients it leads to dizziness, lightheadedness, or near-fainting, especially when standing up quickly. If you are on blood pressure medication, the combination of the heat and the medication can push your numbers lower than intended.

Humidity makes it worse. When the air is thick, your body has a harder time cooling itself. Your heart works harder, you sweat more, and you lose fluid faster. If you are not replacing that fluid, your blood pressure can become more unstable.

Here are a few things I tell patients in Cypress and Northwest Houston every summer:

  • Take your blood pressure at home during heat waves, not just at your annual visit.

  • Be careful with long outdoor activities in the middle of the day.

  • Ask your doctor whether your medication dose needs a seasonal adjustment.

  • Watch for symptoms like dizziness, unusual fatigue, or feeling wiped out after short walks.

  • Hydrate with more than just water if you are sweating heavily for long periods.

I am not saying you should hide inside from June through September. I am saying the heat here is a medical variable, not just a weather complaint. If you have high blood pressure, plan for it the same way you plan for your medications.