Most of the time, it is not plastics themselves, but the hundreds of chemical additives that each plastic has, like plastifiers, ph and surface tension modifiers.
The most important is hormone-like compounds like Bisphenol A (BPA) because hormones are chemical compounds that are used as signals and its effect cascade multiplied by billions in the body, so super small amounts can affect you enormously.
They are being replaced, but new compounds also have hormone like response.
Because biology works by "shape is function" lots of chemical compounds can affect your body because they resemble the one we need for our body's normal function, and the body receptors are confused.
This has extensively been proven that happens, what we don't know is what dose could be ok. For example, you can use(without problems) fleece outside clothing if there is not a big part of your skin in contact with the fleece, like what happened with kid's pajamas, that was very problematic.
Probing that on humans is something similar to covid vaccine testing. It is extremely expensive and bureaucratic process and only gives us statistical results. Knowing exactly what happened is extremely difficult or impossible in practice because there are hundreds of chemical compounds, and they interfere with each other creating factorial combinations. But we know it breaks havoc in your body for sure.
You also should avoid heat because it makes chemical diffusion exponentially higher. When you eat your soda can, the PET layer,is at ambient temperature. When you eat coffee or tea, it is hot.
The most important is hormone-like compounds like Bisphenol A (BPA) because hormones are chemical compounds that are used as signals and its effect cascade multiplied by billions in the body, so super small amounts can affect you enormously.
They are being replaced, but new compounds also have hormone like response.
Because biology works by "shape is function" lots of chemical compounds can affect your body because they resemble the one we need for our body's normal function, and the body receptors are confused.
This has extensively been proven that happens, what we don't know is what dose could be ok. For example, you can use(without problems) fleece outside clothing if there is not a big part of your skin in contact with the fleece, like what happened with kid's pajamas, that was very problematic.
Probing that on humans is something similar to covid vaccine testing. It is extremely expensive and bureaucratic process and only gives us statistical results. Knowing exactly what happened is extremely difficult or impossible in practice because there are hundreds of chemical compounds, and they interfere with each other creating factorial combinations. But we know it breaks havoc in your body for sure.
You also should avoid heat because it makes chemical diffusion exponentially higher. When you eat your soda can, the PET layer,is at ambient temperature. When you eat coffee or tea, it is hot.