Will you live to
be 100? Do you really want to live to be 100? Seriously? Thomas Perls, a geriatrician at Boston Medical Center and professor at the Boston University School of Medicine, thinks he can help you find out how long you will live. Perls has built a 40-question online tool that asks about, well, lots of things, and claims to calculate your approximate life expectancy. Ready? Knock yourself out.
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