What is the cause of seasickness and how may it be avoided?

Seasickness

Q. What is the cause of seasickness and how may it be avoided?

A. It is now believed that seasickness is due to the excessive stimulation of the pneumogastric nerve, causing spasmodic contraction of the stomach and abdominal muscles. The irritation is due to the sudden and repeated disturbance of equilibrium due to the movements of the ship in one who is not accustomed to such movements. Young infants are never seasick, probably for the reason that they are accustomed to frequent changes of the position of the body.

A sea-sick person should remain horizontal, with ice bag to back of neck, the eyes closed and a firm bandage applied over the stomach and abdomen. A sand bag might serve the same pur­pose. Lying in a tub of water is also found beneficial. Some large ocean vessels are now supplied with swinging tanks in which one may enjoy complete immunity from seasickness.

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