Everybody knows what scuba diving is; it is the diver with the air tank on his back and a mouthpiece. The basic scuba set-up is a tank of compressed oxygen on the diver’s back, with a line to a mouth piece. The oxygen is delivered through a mouth piece, allowing the diver to breath. Your carbon dioxide is then either released into the water, or, in self-contained systems or rebreathers, back into the tank. Few people actually know that scuba stands for something, however. The word ‘scuba’ is actually an acronym for “Self Contained Underwater Breathing Apparatus”. Scuba diving is, of course, different from unassisted diving. The history of scuba is quite recent. The biggest advance on the path to scuba diving came in the 16th century, when people started using diving bells to pump air from the surface to people underwater. Needless to say, things have advanced a fair bit since then, although the diving bell remained an important method for centuries. Scuba diving as we know it really came together during and after World War II.
HEALTH AND DISADVANTAGES
It should be noted that, despite being an amazing hobby or sport, scuba diving can be dangerous; after all, you are putting yourself under water and hooking your lungs up to a tube of air. If something goes wrong with your air or you become trapped, then you will experience obvious difficulties. The most common injury related to scuba diving is a result of changes in air pressure. As you go deeper underwater, the pressure around you increases. If the pressure becomes too much, you can rupture your eardrums or damage your sinuses. And if you come up from underwater too quickly, you can also get ‘the bends’, also known as decompression sickness.
Scuba diving is an excellent way to improve physical and emotional health, learn new skills, make friends, expand your environmental awareness and even open up new career opportunities. If you're just starting out and need a little encouragement, take a look at the following list of potential benefits.
Health benefits. You don't have to be super fit to scuba dive. It's a sport that's easily accessible to the average person. You do, however, have to be in fairly good health. Reputable dive companies will ask you to have a basic medical check before you start training, although in some cases you may be asked to fill out a medical questionnaire and only be referred for a check if the dive company considers you at risk. If you dive on a regular basis, your general fitness will slowly improve. As most of us are aware, exercising in the water is highly effective due to the natural resistance of the water. Swimming at depth strapped up to scuba equipment makes for a great work out and you get so caught up in exploring your underwater environment that it seems effortless.
Emotional well-being. Most of us will have heard the theory that watching fish in an aquarium is a stress buster. Imagine how the calming qualities of observing an underwater environment are intensified when you're actually down there interacting with it. Many people find diving a great way to get back to nature, de-stress and relax. You'll even slowly and naturally learn new, calming breathing techniques. Breathing calmly whilst diving helps make your air last longer.
As we can see, Scuba Diving is very very dangerous but then again is a thrilling and exciting activity.