How long it’s effective to keep each stretching position?

Lucena C.
I don’t really know and I don’t know I don’t know and I don’t know and I don’t know and you know I don’t know because I don’t know because I don’t know I don’t know okay??

Malika E.
I personally do it as long as it takes for my body to adapt to it so I don't feel any pain or anything but it's totally up to you