Science Behind: Tylenol

If you’ve ever had a headache, a sprained wrist, or any injury you probably know what it feels like to take a painkiller (such as tylenol, advil, or any kind of paracetamol).

When you are in pain, your brain gets sent chemicals called prostaglandins through a protein known as COX2. Any sort of painkiller binds to that protein and stops it from transmitting those chemicals to the brain. Then, there is no pain.

About five to six hours after taking painkillers, the painkillers will have left your system and blood system.

It’s pretty simple, as it goes, but works pretty well too.