Your immune system: *carefully engineers a fever to create a hostile environment for pathogens*
You: *immediately nukes this sophisticated defense mechanism with Tylenol*
Your immune system: *stares in biochemical disbelief*
That betrayed look is the cellular equivalent of showing up with reinforcements only to find your commander made a secret peace treaty with the enemy. Millions of years of evolutionary programming sabotaged by a pill because you wanted to make your Zoom meeting. Your white blood cells are literally filing for unemployment right now.