Most of us work indoors in air conditioned spaces and, of course, our homes are air conditioned. Because of this, we need to take special precautions when we spend most of the day outdoors in the summer heat.
First, wear shorts, a light colored shirt, a wide rimmed hat which allows air to circulate freely through it to help cool our head ( we radiate 30 % of our body heat from our head).
Another helpful accessory is to wear a "Cool Tie", available at most sporting goods stores. This "Tie" is soaked in cool water for 15-20 minutes before being tied around the neck. It swells-up; increasing its diameter and absorbs water which is then evaporated over a 3-4 hours period, helping you stay cool.
The most important thing to do is to take adequate water or other fluid replacement drinks with you and drink it continuously. When the ambient temperature is 95 F, you need to intake about a quart of fluid per hour. Because of the diuretic effect (water loss) of caffeine and alcohol, it is not recommended that you consume beverages containing these drugs.
Use sunscreen, preferably waterproof (sweat proof). Even if you tan and never burn, use SPF 20. If you bum , use SPF 45. Too much UVA and UVB rays can cause "sun sickness". Use Chapstick sun block 15 on the lips. If you are taking any prescription drugs, check with your pharmacist about sun exposure. Some drugs cause the skin to become photosensitized and can cause big problems with sun exposure. Also, some drugs effect the body's ability to sweat. The body dissipates excess heat by sweating; if you can't sweat, or have a lack of fluid intake, you can have a "heat stroke." Prevention is best! Stay cool and drink plenty of the right kinds of fluids!!
Dr. Lynn Willianms
