Parenting does not simply end when a child turns eighteen. In fact, many parents find that the modern era brings an entirely new set of emotional challenges: navigating the complex, sometimes painful relationship with an adult child who seems ungrateful...

Reaching 80 is no longer unusual in many parts of the world. But what happens after that can be very different from what people imagine. Some people remain active well into their 80s and 90s, while others begin to lose strength,...