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Article #1: Cold water diving

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Thermal Protection the neoprene, the warmer you'll stay.
While most divers are putting their scuba Also, your wetsuit will decrease heat
equipment into winter storage, others are loss by minimizing the water's movement
gearing up for a season of cold water across your skin. This is why the
diving. It's a great way for you to wetsuit's cut, fit, stretch, seals, and
remain active in the sport throughout the fasteners are important.
year. But, in order to remain a contented A dry suit is the next most common item
and safe diver, you need to know about of exposure protection. It works in much
thermal protection. the same way as a wetsuit, except that it
How the Cold Affects You keeps you dry. A dry suit insulates your
Being exposed to cold conditions has an body by trapping air between your skin
effect on your blood's circulation. and the suit, instead of water.
Usually, blood flow to your skin and As you descend in the water, your wetsuit
appendages is diminished in favor of compresses because of the water's
keeping your vital organs warm. The pressure. This compression of the wetsuit
reduction in circulation happens reduces your buoyancy and thermal
gradually over the course of a dive or protection. The biggest reduction in your
multiple dives. Because of the impaired wetsuit's bulk and insulating protection
blood flow to your body's appendages, occurs in the first thirty-three feet of
finger dexterity is reduced. This can water. There is no way to make up for the
lessen your ability to perform certain lost insulation once you're in the water.
skills such as mask clearing, and the Compensate before the dive by putting on
capabilities to adjust straps and belts extra layers of thermal protection to
or operate snaps and clips. meet the demands of your diving
Moreover, it is thought that the body conditions.
tissues of the skin and extremities will Choosing the proper exposure suit is an
have a reduced off-gassing due to the important part of planning your dive,
decreased blood flow. Thus, you will have whether or not you use a wetsuit or dry
a higher risk of decompression illness suit. By logging water temperatures,
(DCI). depths, bottom times, and thermal
Also, when your body is cold during a protection information, you'll put
dive, your rate of breathing increases, together a statistical reference work for
which means your rate of air consumption future dive planning.
increases, too. As a matter of fact, it Five Strategies For Preserving Body Heat:
will almost double. You'll end up using
more air from your tanks in less time For a more comfortable and ultimately
than if you were doing the same dive safer dive follow these tips for
under warmer conditions. Furthermore, conserving body heat.
you'll have to end your dive with more Stay warm before the dive. Heat loss is
reserve air in your tank. For example: if gradual and can start long before you get
you normally end a dive with 200 psi of to the dive site.
air, you'll need to end with 400 psi. 200 Stay warm between repetitive dives.
psi might not be enough if you're cold Standing around in wet gear between dives
and your air use has increased. can add to your body's deprivation of
The effects of being cold and minor warmth through evaporative heat loss.
problems could climax into a real Get warmed up as soon as possible after a
emergency. dive. You can start on the dive boat by
How A Wetsuit Works toweling off and getting into dry
A wetsuit is the most common item of clothes.
exposure protection. The purpose of a You can develop hypothermia without
wetsuit is to insulate your body and immediately recognizing it. When choosing
minimize heat loss. Wetsuits operate by your exposure suit, err on the side of
trapping a layer of water between your thermal protection.
skin and the suit. The heat from your Become an educated consumer. Visit your
body warms up the layer of water, which local dive shop and have them show you
helps you retain your body's temperature. the different styles of protective
The thickness and quality of the wetsuit garments and accessories. Don't be afraid
material (usually neoprene) determine the to ask questions.
suit's ability to insulate. The thicker






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