So did Bulma invented some anti-aging gizmo for her parents?
To be fair, he wouldn't be Toriyama if he did otherwise.
Let the joy of love give you an answer! Check out my book!This is true.
Anyway, here's a thing about things:
In hindsight, yeah, Tarble was kinda uninteresting. As much as I like Cabba, it's a shame Toriyama didn't really put much thought into Vegeta's bro. There was a lot of stuff to mine there, but this wouldn't be the first time he introduced the brother of a character and then tossed them under the bus. At least Tarble is still alive, unlike Raditz.
One Strip! One Strip!Good that he's still alive?
Good that he's forgotten?
Good that he has a wife?
I need specifics! Otherwise I need to think for myself! Why would you do that to me?
One Strip! One Strip!Vegeta: You are a bamboo whiner, but I must say, you surpass my expectations, and you look sorta like a noodle panda, so, you are like the little brother I never had.
Cabba: Oh... thanks a lot, Vegeta!
Goku: Wait, didn't your brother came to Earth a few years back, Geets?
Vegeta: Like the brother I never had, Kakarot.
To win, you need to adapt, and to adapt, you need to be able to laugh away all the restraints. Everything holding you back....
Quick draw competition with Omega Beam vs Hakai-ing.
Somebody's getting whooped.
One Strip! One Strip!

Still, it implies that Briefs and Panty were still in high school at least when they had Tights.
DAMMIT MARK, STOP HITTING HELPY!!