When the National Weather Service post heat advisories we should take notice. During these events local medical and rescue personnel see an increase in heat related emergencies. One of the biggest killers in the world is cardiovascular disease and many do not know they have it until symptoms are triggered by something like elevated heat.
As the world’s population is aging, ever-more people are affected. The number of people living with blood pressure doubled in the past 30 years — to about 1.3 billion people. Because there are no obvious symptoms, almost half don’t even know they live with it.
When a person with high blood pressure or cardiovascular disease is exposed to the high heat the potential for a stroke or heart attack is raised. Stay aware and look for the symptoms.
During extremely hot and humid weather, your body's ability to cool itself is challenged. When the body heats too rapidly to cool itself properly, or when too much fluid or salt is lost through dehydration or sweating, body temperature rises and you or someone you care about may experience a heat-related illness. It is important to know the symptoms of excessive heat exposure and the appropriate responses. Here are some key items from the CDC and National Weather Service (below)
The effects of heat on the body are well known: it strains the heart and kidneys, causes headaches, disrupts sleep and slows cognition. In extreme cases, heat stroke can lead to multi-organ failure
The Mayo Clinic Health System advises the following precautions during heat advisories:
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