In 2017 global population aged 60 years and older reached more than 962 million; more than twice the number of 1980, when the worldwide population of older persons was 382 million. By 2050 the projected number of older persons is expected to double again, reaching 2.1 billion. By 2030, older people are expected to outnumber children under age 10-14 (1 billion vs. 1.35 billion) and eventually outnumber the number of adolescents and youth globally. Furthermore, the number of persons age 80 years or over is projected to increase more than threefold by 2050, climbing from 127 million to 425 million.