Weekend Immune System Phone Cases - iPhone and Android

Description: Some immune systems fight bacteria. Yours fights the prospect of attending work. This design celebrates that mysterious medical condition where you feel indestructible all weekend, only to wake up on Monday with the constitution of a damp tissue. Cool fact: Immune system activity follows circadian rhythms, meaning your immune responses genuinely can vary throughout the day, although science has yet to prove that antibodies recognise weekends.