Monday, Jan. 12, 2015 -- There are some ways in which we age that we all have in common, and many of these are outside of our control. I’ve noticed, for example, that, as I grow older, my hair is thinner and has touches of gray, my skin has some wrinkles and my eyes focus less well when reading. As individuals, though, we each age somewhat differently, and how this takes place depends in part on our genes. We are each genetically predisposed to age in a certain way. For example, some families tend to live a long time, aging well into their 90s or even longer. Other families tend to develop diseases that may limit the lifespan. These things are all beyond our control.