Surviving extreme heat poses special problems for older people, says the Harvard Health Letter
Killer heat waves such as the one blamed for 14,800 deaths in France in 2003 may become more common. Global warming is one part of the problem. Another part is the growing number of people who are more vulnerable to the heat because they're older and heavier, the July issue of the Harvard Health Letter explains.
Thirst declines with age, and older sweat glands don’t produce as much sweat as they used to. The sweat that is produced tends to contain more salt, and lack of salt in the body can lead to sudden drops in blood pressure.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.
Sign Me UpAlready a member? Login ».
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.