A family of Penan, a people indigenous to the Malaysian peninsula, spends an afternoon at home in Long Bubui, Sarawak state, on July 21. Experts say that Malaysia's current demographic window, in which it has a large working-age population relative to its under-15 and over-65 population, must not be wasted. Malaysians retire well before their working years are spent -- public servants only work until they're 55. Tengku Aizan Hamid of the Institute of Gerontology at University Putra Malaysia in Serdang told the Star, "Just because I am an old rambutan tree doesn't mean I produce old rambutans. In fact, the fruit of old trees is often sweeter."