What do chin tucks actually do?

[I_Dont_Mog]

I've been seeing hype around chin tucks claiming to give more forward growth but I can't see how repeatedly bringing your chin in is going to give more forward growth? The main question here is how do they work and provide more forward growth?

 

[Arwin12]

I've been seeing hype around chin tucks claiming to give more forward growth but I can't see how repeatedly bringing your chin in is going to give more forward growth? The main question here is how do they work and provide more forward growth?

not forward growth but good posture ( i guess)

 

[Sachlichkeit]

Reinforce back third posture and strengthen the muscles needed for tongue posture

 

[Vannen1234]

its said to raise ur hyoid in order for your tongue to have great posture so you can fraud in selfies otherwise not much