An estimated 5.5 million Americans of all ages have Alzheimer's disease. Of the estimated 5.5 million Americans living with Alzheimer's dementia in 2017, an estimated 5.3 million are age 65 and older and approximately 200,000 individuals are under age 65 and have younger-onset Alzheimer's. One in 10 people age 65 and older (10 percent) has Alzheimer's dementia.
Major dictionaries. The longest word in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, a word that refers to a lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis.
If you consider more obscure words, however, you'll find that aftercataracts and tesseradecades, are the longest words at 14 characters. Using only your right hand, the longest word you can type is lollipop but if you permit the use of dashes, then Johnny-Jump-Up â a type of flower â becomes the longest word you can type with only the right hand. Other words that you can type only with your left hand are retweet, gazette, eraser, and seatbelt. Other right hand words ...