Well if you lose your sense of humor about it one day the little kids will walk by your place and say "That's a mean old woman sitting on the porch with the chicken on her lap!"
I'm 8 years older than my wife and I told her it would all come apart at 50. Well she's 59 now, still weighs the same as when we married, up every morning picking stalls, rides and trains horses each day and races on the weekend. I tell her it's all her fault the shape I'm in because I worked so hard all these years so she can keep riding horses. She just grins and keeps on going!