Study finds that acetaminophen dulls emotion

A new study has uncovered a new side effect from a popular pain reliever.

Acetaminophen is found in Tylenol and hundreds of other medicines and is often used to reduce fever.

But scientists found it not only dulls your pain - it dulls your emotions as well.

They say the drug could be an "all purpose" emotion reliever.

The medicine has been on the market for 70 years. But this is the first time this side effect has been documented.