Emphysema A lung disease in which breathing becomes difficult. Glaucoma A condition in which pressure in the eye is abnormally high. If not treated, glaucoma may lead to blindness. Hallucination A false or distorted perception of objects, sounds, or events that seems real. Hallucinations usually result from drugs or mental disorders.
Heat stroke A severe condition caused by prolonged exposure to high heat.
Heat stroke interferes with the body's temperature regulating abilities and can lead to collapse and coma. Inflammation Pain, redness, swelling, and heat that usually develop in response to injury or illness. Myasthenia gravis A chronic disease with symptoms that include muscle weakness and sometimes paralysis. Palpitation Rapid, forceful, throbbing, or fluttering heartbeat. Prostate A donut-shaped gland below the bladder in men that contributes to the production of semen.