Releasing toxins (my ass)

You're in your yoga class, or the like, and have been instructed to do a twist.

Inhale, grow taller through your spine. Exhale, twist a little deeper.

9 times out of 10, you'll then be told you are releasing toxins with that twist. Well how handy fucking dandy. Feels good AND releasing toxins. Thank the yoga gods!

This "releasing toxins" line bugs me on a scientific level. First of all, can you give me a reference? I've looked for one and can't find any. EVERYONE says it, and no one provides a reference.

Second of all, where are the toxins supposed to go?

The best I can tell, it is logically accepted (hoped) that you are squeezing the liver, which purges it of stale blood, and then fresh blood rushes in afterwards (the "squeeze and soak" philosophy). The liver is responsible for filtering blood, detoxifying chemicals, and metabolizing drugs (REFERENCE). Also, when the liver has broken down harmful substances, they are excreted into the bile or blood. WHEN IT'S READY. What if the twisting, which is doing all that "releasing", rushes the liver. What if the processing isn't done - then the blood that's being treated in the liver is squeezed out and un-broken-down harmful substances are excreted into the body at large. AT LARGE. Ever think of that, yoga teacher? Did ya?

I want teachers to stop saying that X is happening when X is just what everyone else says because it sounds good. Have us twist because it feels great. Remind us that we are stimulating our internal organs. Remind us how to breath and elongate. And okay fine, you can also ask me to "breathe into it". Despite knowing full well that air goes into the lungs, that malarkey actually seems to work.