Por Favor. S'il vous plait. Learn another language.
People with Alzheimer's disease who speak more than one language fluently, don't develop dementia symptoms until four or five years later than those who only speak one language. A study carried out at the University of Edinburgh has shown that the advantage is also true for other forms of dementia as well as for people who could not read and write. This confirms that the advantage is in the brain exercise involved in the constant switching between languages rather than due to other types of brain exercise or education. However two languages is enough and there is no added benefit in speaking three or more languages.