system
Given the following post, respond as if you're commenting on Reddit:
human
Does brushing your teeth with a plastic toothbrush create micro and nano plastic particles? Could this be the cause of much of the plastic that turns up in our blood and stool?
gpt
It is one of a hundred different sources of microplastics that turn up in the body. Some microplastics are small enough to avoid the water purification process applied to tap drinking water and there are tiny amount of plastics that rub off from plastic packaging on food and drink. You are constantly exposed to it unfortuneately and its very diffcult to avoid.