The human body can tolerate only a small range of ambient heat. Sustained exposure beyond this limit can lead to dangerous or even fatal heat exhaustion and exacerbate pre-existing conditions, especially those involving the cardiovascular, respiratory, or renal systems. This is especially true for older adults ages 60+.1
Here’s why…
1. They don’t sweat as effectively. Sweating is one of the body’s most important cooling mechanisms. With age, sweat-gland function can decline, so an older person may produce less sweat even when they’re dangerously hot.
2. They may not sense thirst as strongly. The thirst response often becomes weaker with age. An older adult can become significantly dehydrated before feeling very thirsty. Dehydration reduces blood volume and makes it harder to circulate blood to the skin for cooling.
3. Their cardiovascular system has less reserve. Cooling requires increased blood flow to the skin. Older hearts and blood vessels may not be able to increase circulation as efficiently, particularly in people with cardiovascular disease.
4. Body temperature regulation becomes less efficient. The brain’s temperature-regulating mechanisms can become less responsive with age. This can delay recognition that the body is overheating.
5. Medications can increase the risk. This is a big one. Certain commonly used medications can interfere with sweating, hydration, blood pressure, or electrolyte balance, including:
• Diuretics (“water pills”)
• Some blood pressure medications
• Anticholinergic medications
• Certain antidepressants and antipsychotics
• Some antihistamines
6. They may have less total body water. Older adults generally have a lower percentage of body water than younger adults. Consequently, they have less fluid reserve when sweating heavily.
7. Chronic illnesses can compound the problem. Conditions such as heart disease, kidney disease, diabetes, and lung disease can make it harder to tolerate heat.
How to help:
Sip pH-balanced water throughout the day. Add a quality electrolyte to help replenish lost electrolytes. If severely dehydrated, these likely won’t be enough. IV (intravenous) fluids can quickly replenish what your body is missing and get you back on track to healthier, more hydrated living.
For more information about IV therapy, please visit primeiveastmesa.com or call us at (480) 992-4202. Prime IV Hydration & Wellness – Red Mountain Gateway is located at 2025 N. Power Road in Suite 106.