Jacob Black, the werewolf character from the Twilight saga, does not stop aging. While werewolves in the series possess enhanced strength, speed, and senses, they are not immune to the natural process of aging.
Jacob's aging is depicted throughout the series, with his physical changes and emotional maturity reflecting the passage of time.
While werewolves in the Twilight universe have extended lifespans compared to humans, they still age and eventually die.