Extended Lifespan (P, X)

2 points/level
An average life cycle is defined as maturity at age 18, with aging effects (see p. 444) starting at age 50 and accelerating at ages 70 and 90. Each level of Extended Lifespan doubles all these values. Note that if you need to take more than seven levels of this trait (giving maturity at age 2,304 and the onset of aging at age 6,400), it is more efficient to take Unaging (p. 95).