Other common complaints of patients with MDD include a sensation of uneven ground below their feet while walking, or feeling as if they are still on a boat. Less common triggers include airplane travel, extended landing travel and sleeping on water beds. The most common triggers are water-based activities such as ocean cruising. Symptoms may diminish in time or may reappear spontaneously or after another exposure. ![]() However, in MDD, significant balance impairment can persist for months to years. Studies have shown that a brief period of these symptoms is common in healthy individuals after prolonged episodes of passive motion, normally lasting seconds to three days. The symptoms tend to be exacerbated when a patient is not moving, for example, when sleeping or standing still. Mal de debarquement (MDD) is a rare and poorly understood disorder of the vestibular system that results in a phantom perception of self- motion typically described as rocking, bobbing or swaying.
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