system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:What does Aspirin do to us?
gpt
So aspirin has a couple of therapeutic effects. It is known as a salicylate (this is important later on) and a NSAID, non steroidal anti-inflammatory drug. To start it is an antipyretic, also known as a fever reducer, much like Tylenol. 

It is also an anti inflammatory, aka stops swelling, and an analgesic, aka stops pain. 

It’s most common use though is for anti platelet which means that it lowers the platelet amount in your body in order to prevent clots, which can wreak havoc if they get to the lungs or brain. In the lungs it causes a pulmonary embolism and in the brain it causes a stroke. It also is used to prevent heart attacks due to these properties. If platelets are higher than 450,000 per microliter of blood, there is an increased risk for these clots. Aspirin will lower the function of platelets  sticking together and prevent coagulation. 

However, you cannot give aspirin to a child as it can cause Reye syndrome, which is deadly. If you’d like me to go into depth about the other three effects let me know, but there are much better options for those, including for children.

Edit: misspoke, evidence of comment down below. Sorry guys, doing multiple things at once!