Once a celestial being had practiced to the level of a Golden Immortal, their speed of aging would slow down dramatically. It would appear that even after a thousand years, their body would only look like it aged for a year.
To reach the level of a Golden Immortal, it took at least hundreds to thousands of years. By the time they reached that level, they would look like a woman in their late twenties. Only a few geniuses could reach the level of a Golden Immortal level in 300 to 400 years, and they would look like a woman in their early twenties- 23 to 24 years old.
