Seasickness
Virtually anyone can be subject to sea sickness or motion sickness
sense of spatial orientation
eyes observe where our body is in relation to its surroundings as well as the direction of motion.
All these sensory data will subsequently be processed in the central nervous system, which enables us to balance, move and position ourselves properly in our three dimensional surroundings.
The symptoms of motion sickness appear when the brain receives conflicting messages from the 4 systemslethargy and a slight drowsiness. But for the victims it will usually start with a nauseous feeling and/or a slight cold sweat. Then these symptoms increase, and the face becomes paler, perhaps even greenish. Any attempt to concentrate on a task will worsen this predicament. The nauseous feeling eventually becomes incontrollable, and leads to - sometimes violent - vomiting.
Prevention of seasickness
Hours before casting off you could well use an over-the-counter antihistamine such as meclizine or dimenhydrinate and you should - before and during the voyage - avoid spicy or rich foods, alcohol and apples. For longer trips, a prescription medication called Transderm-Scopolamine patch can be worn behind the ear for up to three days at a time. Side-effects of these medications usually consist of sedation and dry mouth. Interestingly enough : Recent studies have shown that ginger root may be as effective as the other drug treatments but is associated with fewer side effects. If, despite all these precautions, you still notice the early symptoms with one of you crew, act immediately and :
- get the victim out on deck but not in direct sunlight other than steering.
Steering - as well as studying the horizon works and will help to anticipate the boat’s motion. Else let the victim lay in the cockpit to leeward with closed eyes. - Steady the yacht, either by heaving to or letting the best helmsman drive the yacht.
Page courtesy of www.sailingissues.com
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