#gross #human #body #facts #saliva #swim #spit #pool #quantity #madmarch #evolutionmyotherapy

#gross #human #body #facts #fresh #urine #pee #saliva #skin #bacteria #madmarch #evolutionmyotherapy

Produced in salivary glands, saliva is 98% water, but it contains many important substances, including electrolytes, mucus, antibacterial...