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.
glutaminyl=C5H9N2O2 valyl=(CH3)2CHCH(NH2)CO} Therefore one strand of DNA could be lengthened out to an infinite amount of letters long. The current longest accepted word in English dictionaries (above) is questioned also being as that it was coined by a man in 1935 simply for the purpose of creating a new longest word.