How old do people generally get before their memory capacity starts getting limited? Quadragenarians are people within what age-range? Is #1 within or less than the range of #2?
Memory
Quadragenarians are people that are in their 40s. As people age, their memory can get worse. Half of people over age 50 have mild to severe memory loss. Ken Jennings was 46 years old when he won Jeopardy! The Greatest of All Time tournament.
information stored in the mind, or the mental processes involved in receiving, storing, and retrieving this information
Do quadragenarian's have little memory capacity?