Thrifty phenotype

Taravana is a syndrome observed in breath-hold divers, particularly those of the Tuamotu group of islands in French Polynesia. It is characterized by dizziness, nausea, fatigue, paralysis, and unconsciousness. The term "taravana" is from the Tuamotuan language and means "to fall crazily".

Symptoms

The symptoms of Taravana include vertigo, nausea, weakness, paralysis, and unconsciousness. These symptoms are similar to those of decompression sickness, and the two conditions are often confused. However, Taravana is specifically associated with breath-hold diving, while decompression sickness is associated with scuba diving.

Causes

The exact cause of Taravana is not known, but it is believed to be related to decompression sickness. Breath-hold divers are exposed to changes in pressure that can cause nitrogen to dissolve into the blood and tissues. If the diver ascends too quickly, the nitrogen can form bubbles, leading to the symptoms of Taravana.

Treatment

Treatment for Taravana is similar to that for decompression sickness. This typically involves administering oxygen and hyperbaric therapy, which involves breathing pure oxygen in a pressurized room or tube.

Prevention

Prevention of Taravana involves following safe diving practices. This includes avoiding rapid ascents, taking breaks between dives, and not diving when fatigued or dehydrated.

See also

• Decompression sickness
• Diving medicine
• Hyperbaric medicine

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