Electrolyte replacement drinks such as Gatorade or Powerade. Eting fruits or veggies with great ammounts of water such as cucumbers, watermelon. And especially drinking water!
The U.S. population is aging. Today, there are more than 46 million older adults age 65 and older living in the U.S.; by 2050, that number is expected to grow to almost 90 million.
Cooling down helps both your heart rate and breathing return to resting levels. This helps to avoid dizziness as well as fainting. Stoping suddenly is bad for the heart and can put stress on it.
I might be wrong but I think the answer is Gerontology.
Hope this was helpful XD