Not sure. Probably my lungs.

my brain 😬

Idk it's all so incredibly strong

my neck.

My hair🙂

My brain. :p

My lower back.

The hole where my appendix used to be. I'm no longer capable of appendicizing.

My brain as sometimes I don’t have common sense lol

right hip since my fall o n ice 2014

LOL
The top floor - weakest & empty.

And I just found having a lot of twins on this post.

My heart

pinky toe. LOL

I'm not sure, but I've never had steady hands. They always shake.

Every part 😜

butthole

I used to be able to lift 40kg with my errection, but these days my knees cant take it 😂