"It's possible to pull a jaw muscle while yawning. I found this out the hard way at work one day."
"If you say haaah your breath comes out warm,but when you say Woooh it comes out cold."
"That there is NOT 20 lbs of toxic poop in your body at any given time. But apparently a ton of people still believe all sorts of ads about some pill or another being able to flush some imaginary "toxins" out of your body like it's going to magically cure you of 20 years of terrible eating and exercise habits."
I always look a those fact threads for the debunking below