People all over the world are living longer. Worldwide, few people reach the age of 100, and those who do are often celebrated for their longevity. Only one out of every six thousand people will blow out the candles on their 100th birthday cake. Even fewer people (one out of every seven million) have lived beyond age 100 into their 110s or 120s. Currently, the United States and Japan are home to the largest numbers of people aged 100 or older world wide.