In the NFL we often hear about the dreaded age of 30 and how it is the beginning of the end for players. For years it has felt that the third decade of life was when players had reached their peak, and it is typically viewed as either a sharp decline or a slow, gradual fall back down to reality for athletes from that point on.
While it is not a perfect science and not easy to predict, historically many have experienced a decline in performance due to age-related factors such as decreased mobility, slower reaction times, and increased injury risk.