You've hit the golden years, but it feels more like the Twilight Zone. You receive birthday cards from funeral homes. You need three pairs of glasses to get through the morning paper. Your old friends are dropping like flies. On a good day, nothing hurts until your medication wears off. Well, fear not. You're not alone: senior citizens are the fastest-growing segment of the population. You haven't lost your marbles. You're simply having a few Senior...