My cousin is 46 but everytime he posts a pic on facebook he looks younger.

Like a couple years ago he had grey hair and looked out of shape now he's like jacked and his hair is black again. Like, idk if he's the real life Benjamin Button but he went from looking like a dude in his 40s to looking like a dude in his 20s who plays rugby.

Like, how is it that every year he ages it looks like he's getting younger.

He's currently jacked, 6'4, dark hair, chizzled face, and looks like he could litterally kick a 20 year old rugby player's assss. How is this possible?