It’s summer
time at the Old Place and interesting things are beginning to happen. The state
bird of Louisiana, the mosquito has begun to make its presence felt (Slap my
arm, say OUCH!). The poison ivy starts
to climb and sunburns make us all look like Washington
Redskins! Ha! Oh sure autocross season is in full swing and
the bikini girls are out in force but hey, you do not want to see me in a
Speedo! Most of my Southern bretherin’ do
revel in the heat, spending long hours after work and on the weekends outside. Whatever your particular outside endeavor is
please allow me to caution you, heat can be a killer. Ordinarily I would spend this time talking
about the importance of taking frequent breaks in the shade, keeping hydrated
and how not to confuse fluid replacers with energy drinks. This morning though I am going to do
something I normally would never think about doing. . . I am going to play the race card! It’s all right folks,
it’s nothing like that. Anyone who has
taken basic first aid has learned about the various stages of heat emergencies
and how important it is to be able to recognize the signs. Whether it is the cold clammy pale skin and
heavy sweating of heat exhaustion or the hot dry red skin associated with heat
stroke most of us know what to look for and what to do. But what about folks of African, Hispanic or
Mediterranean descent, would they turn red too?
Hmm, good question. The answer is
actually, no. An African American with
very dark skin will usually turn a deep purple color, while Hispanics tend to
achieve something of a mahogany tone. Is
this really a safety issue? I’ll let you
decide. This past week I did an
impromptu pole of our African American, Hispanic and Native American workers and found only two who already
knew this. Why does no one teach
this? Likely this comes from the old
belief that since darker skinned folks come from tropical regions, they are naturally more tolerant of heat. Okay, let’s look at that
logically. We all know that darker colors tend to absorb heat while lighter
colors reflect heat. This is called, “Solar Radiative Heat Gain, and it differs
significantly among individuals and between populations. Studies indicate that lighter skin reflects
about 30-40 percent of total solar radiation, while dark skin reflects only 18
percent or less. That would seem to
suggest that darker skinned folk would have MORE trouble with heat rather than
less. In fact, there have been over 108 distinct studies related to heat
tolerance. Of the myriad of factors studied
the greatest influence on individual response to heat tolerance is
acclimatization or “just getting used to it.”
The remarkable aspect of the acclimatization response is the ease by
which it is accomplished. It is rapid,
effective, and occurred even when the tests were performed in a temperate
climate in winter. That’s right friends the studies even included native Eskimo
tribes. Furthermore, all normal, healthy people who were tested were able to
acclimate whether to extreme heat or extreme cold. What can we learn from all this? When it comes to teaching about the dangers
of heat, play the race card. Everyone
regardless of race, color or creed needs to know how to spot the signs of heat
stroke in everyone and to treat it as the life threatening illness that it is.
Sitting in a
rocker at the Old Place, with a glass of iced tea, I am Col. Jim.