Every year on your birthday, you get a stark reminder of how old you are- at least according to the calendar. But some of us feel younger than our years would suggest, and others of us feel “older” than we’d like. How to explain this? Well, our chronological age is one way to measure how old we are. But, in fact, biologically speaking, the aging process may be different for each of us and now there may be a simple way to determine, biologically, how “old” we really are. Publishing in the journal Frontiers in Aging Neuroscience, Chinese researchers have discovered an oxidative damage marker in urine that could lead to a simple urine test to determine how your individual body is actually aging and what age-related diseases may be in your future. Read more about this research Here. On the other hand, our perception of our own aging may be less definitive than a urine test, and more likely to shift as we grow older. New research out of Michigan finds that when we are younger, we think of how we age differently than we do as we actually get older. The conclusion? It seems the older we are, the better we feel about old age. Take a look at the study results Here.