It's hard to believe that Goku is 48 years old, at the time of the manga's end, but he still does not look a day old from 22. Dragon Ball Super would have been so much better, if they would have at least made Goku look a little bit older.
It's hard to believe that Goku is 48 years old, at the time of the manga's end, but he still does not look a day old from 22. Dragon Ball Super would have been so much better, if they would have at least made Goku look a little bit older.
That's why Bulma asked Vegeta about why him and Goku don't age normally. His response was due to their genetics of fighting and being in top condition. That's why they train, seek out battles, suffer near death experiences, and increase their power levels.
You can see that mixed blood Saiyans age and their hair does grow. Gohan, Goten, and Trunks aren't as powerful as their parents since they don't train and have battle lust like their fathers since they're in a peaceful time period.
Another thing to think about is as the Sayian race evolved, it could be assumed most probably died in battle anyway meaning most if not all woudln't make it to an "Old age" anyway.
So their bodies are literally made to be fighting "machines".
Goku died during Cell saga so he doesn't aged during 7 year gap between Boo saga.Didn't Vegeta mention saiyan have long life span compare to earthlings.