Research points to two milestone ages—around 44 and 60—when aging accelerates. Here’s what shifts and five habits to help you stay ahead.

A 101-year-old neurologist credits three rituals—keep working your mind, nurture friendships, and read often—for preserving memory and mental agility well into later life.

It’s not diet or money, but strong relationships that predict how long you’ll live. Discover what the Harvard Study of Adult Development reveals about the power of connection.