The general opinion has been that coffee and particularly levels of caffeine has a undesirable effect on scuba divers. The primary problems you find quoted are generally mild to severe headaches, elevated blood pressure levels, as well as dehydration from a diuretic outcome.
But these look like simply being common myths that get regularly repeated, and scientific studies from as far back as 2002 shows these issues are not due to levels of caffeine in coffee.
The Divers Alert Network lists 8 additional reasons for head aches soon after deep-sea diving, together with the common headache for large quantities of levels of caffeine. A Sixteen U.S. oz (465ml) Dunkin Donuts Coffee has got 146mg typically. Some individuals may experience a condition referred to as Caffeinism, but only after drinking 500mg or more each day and particularly over long periods of time. However your body is shown to adapt to frequent caffeine consumption. Just how much caffeine is a lot?
Swiss basic research has demonstrated that the level of caffeine does not effect blood pressure and though non coffee drinkers present increased blood pressure after drinking a cup of coffee, they don’t with various other types of pure caffeine. Typical coffee drinkers were actually shown to have habitulised and exhibited no increase.
The last misconception is that coffee is a diruretic and makes most people need the restroom. But again scientific studies shows that it is no different than consuming the identical amount of normal water. The more you drink the more anyone will would need to go to the restroom.
So, if you enjoy your coffee, and you relish your scuba diving, it appears like there is absolutely no requirement to isolate the two.
If you are interested in finding out more about the research behind the National coffee day 2011: 3 myths about caffeine and scuba diving, I suggest you read more on the GozoDiver website.