My friend calls them “organ recitals” — those all-too-frequent occasions when our conversations with one another end up being nothing more than a depressing recap of bodily aches and pains. Although by no means restricted to one age group or another, experience would suggest that they’re more commonly heard amongst the elderly. As it turns out, though, this kind of gloomy chit chat belies the fact that most older Americans are actually quite optimistic about their future. Even about their health. According to a survey conducted by USA Today, United Healthcare, and the National Council on Aging: • More than …