fear is the quickest way to lower your immunity system… JOY is the quickest way to STRENGTHEN your immunity system ♥️

@katyperry finding an immunity idol is the quickest way to STRENGTHEN your tribal council odds ❤️

@katyperry Why does this read like movie script?

@katyperry You cannot modify your immune system just by changing your emotions. Your white blood cells don't care if you're happy or afraid. They just care if they encounter a foreign invader (like viruses or bacteria). So get vaccinated & train your immune system without getting sick.

@katyperry Feel free to tweet for a quick tutorial on the IMMUNE system Katy.