Other than excessive<unk> , the disease causes vomiting, hallucination, nausea and disorientation. Victims of the disease often feel hallucinations like a "snail walking over their face". In a statement, a professor from Tomsk Polytechnic University, Leonid Rikhvanov, of the department of Geo-ecology and Geo-chemistry said that radon gas from the mine could be the cause of the symptoms. The affected people fall<unk>  during day-to-day activities and always feel<unk> y. One of the doctors said, "You wake them up, they can speak to you, reply to you, but as soon as you stop talking and ask what bothers them, they just want to<unk> ,<unk> ,<unk> .".
Sleep hollow
Sharsheret 
Sleep and breathing
Liquid breathing
Worried well 
Light skin
Digitate wart
White coat