Gerontology experts have educated us well on what living a long, healthy life may require. It includes such things as moderation in one's diet, the need for regular exercise, the importance of keeping our minds alert, and, of course, having the right attitude. Concerning the latter, I believe our lives to have been a gift. And how we show our appreciation is a reflection of how clearly we recognize our good fortune. Here are a few other thoughts that may prove helpful.