Panoramic views of fantastic coral reefs, majestic and frightening shipwrecks and extraordinary marine life are the main attractions for dive lovers. But it’s important to remember the dangers of scuba diving, as some are potentially life threatening.

Health problems that may arise from diving

Oxygen poisoning

Oxygen poisoning is usually only a threat to divers who dive more than 41 meters. Like nitrogen, the body absorbs additional oxygen due to underwater pressure. For most divers this is not a problem, but at extreme depths so much extra oxygen is absorbed that it becomes toxic. Effects range from tunnel vision and nausea to muscle twitching, loss of consciousness, seizures, and drowning.

Oxygen poisoning comes on quickly and without warning. The best advice for avoiding oxygen toxicity is to be aware of your depth limit and stick to it.

How common are the medical problems that can result from diving?

Serious medical …