The fact is, we’re not getting any younger. As a nation, we are living longer and the largest segment of the population — the baby boomers — is hitting retirement age. In the United States, the age 65 and over demographic is the fastest growing segment of the population, and of that group the fastest growing segment is over age 85, says Ken Gross, president and founder of Medical Alert Monitoring Association (MAMA) and president of Broomall, Pa.-based Connect America.