Are hypertension and hot weather well-mixed? This is a legitimate question, the answer of which is not necessarily the one we believe. Should we act differently, when we are hypertensive and the heat wave is announced? Response from our medical director.
A tension abused by heat
When the sun hits, as planned this week, our body is putting itself in survival mode. The blood vessels expand to evacuate the heat: it is vasodilation. Result ? Contrary to what one might think, the blood pressure decreases. This is why, in summer, hypertensive can sometimes find themselves … in a complex situation.
A fact confirmed to us by Dr Gérald Kierzek, emergency doctor and director of True Medical, “The heat tends to lower blood pressure, especially during heat exhaustion “. But beware of appearances. Because a heat stroke can also, in some cases, brutally raise tension, especially if it is accompanied by thermal stress or severe dehydration.
Another trap: nights too hot. Sleep being disturbed, blood pressure can go up the next day. A variability which complicates the management of hypertensive, especially during episodes of heat wave. But then how to navigate? And how to manage hypertension?
Simple but crucial precautions
From 30 ° C, it is then advisable to monitor your tension more frequently, especially if you are under treatment. Certain drugs, including diuretics or antihypertensivers, can increase the effects of heat. “”A temporary adjustment is sometimes necessary, but never without medical advice “insists Dr. Kierzek. Recall that self -medication can worsen things.
Here are the other good reflexes to adopt in case of hot weather and hypertension:
- Regular hydration, without excess (no frozen drinks or high dose water);
- Avoid thermal shocks, especially between air -conditioned interior and burning outdoor;
- Limit physical efforts at fresh hours;
- Consult your doctor for a possible adaptation of treatment;
- Be attentive to alert signals: dizziness, weakness, loss of knowledge.
Target the balance above all
Our doctor’s key message? Never interrupt or modify your treatment without medical support, even if the tension seems too low. “Self -monitoring is important, but it does not replace follow -up”recalls Dr. Kierzek. In short, the heat does not transform hypertensive into delay bombs. But she must invite us to listen to us more … and keep our head cool.