Plastic. Its in your blood ffs

Social media. It wasn't until very recently that people started to realize just how harmful it actually is.

Sugar. People don't realize how bad it is for you and how addictive it is.

Micro plastics. We were advertising them in facial scrubs ffs.

Perfluoroalkyls aka PFAS appear to screw with all manner of body functions.

Since you mention tobacco: It's worth noting that the smoking/cancer connection was noticed long before peak cigarette smoking in the population. Prior to WWII, lung cancer was considered a rare disease. That changed with the mass marketing of cigarettes.

Microplastics and plastic related byproducts, like phtalates (which are connected with a decreased fertility in mammals)
I'm positive that the long term effects of these substances, that can be found in every link of the food chain nowadays, will be discussed a lot in the future

Javascript

Social Media

vapes

Social media

Probably brake pads. Everyone's living in cities now, just breathing in brake pad and lead particles.

Oh and car tires. Just huffing those all day.

Social Media

"smart" devices aka Internet asbestos

Microplastics and PFAS

No, seriously, these two will kill Earth, and us

Marketing. We put a person on the moon because we were scared of the space race, and then we spent the next 50 years figuring out how to make rich people richer by manipulating human behavior and gamifying everything so you buy into the buy more stuff you don't need and click more stuff you don't care about. We've gotten so good at it, we only need a 10 second short to advertise stuff to you.

This affects everything we do down to its core and will likely be the cause of astronomical ADHD rates in the future.

Sugar, especially in the US where it's literally added into everything. What's worse is the alternative (substitutes like aspartame) might also be a candidate and we just don't know it yet because enough time hasn't passed to study the long term effects. I try to take stevia as much as possible because it's more "natural", but only a few sugar-free products use it over aspartame. I read recently the WHO still considers aspartame as a carcinogen, but only in excessive amounts, like several glasses of soda a day.

Endocrine disrupters - mainly from plastics

I thought the comments section would be filled with vapes.

Guys, i think vapes are a good candidate for something that hindsight will show us was dangerous, and i think images of teens smoking Juul will age as poorly as kids drinking beer.

PFAS, which are needed to produce teflon and other nonstick materials. It currently begins to attack attention, but wasn't really an issue a few years ago. It doesn't decay naturally so it will be forever in the environment. The EU is even planning to ban all PFAS.

Corn. It is a fact that the number of autoimmune diseases are rising. I read a NHS study comparing the data of the last 30 or so years and of right now 1 of 10 people in the UK will get an autoimmune disease at some point in their live such as diabetes, MS, Parkinson,... 30 years ago it was like 1 out of 50. And one common thing in countries with a higher autoimmune disease rate is a lot of corn products, like corn starch, corn sirup,... Right now the final proof is missing cause the studies just started. And maybe it is not corn and something completely different, but the stakes are high it is corn.

I think it's about to be the weather

Sugar is this generation's nicotine.

Vaping fluid, hydrophobic coatings

Not sure why people keep saying microplastics. That's been known for a long time now.

It feels like the WHO - or more realistically - the media is/was trying hard to make aspartame this by claiming it causes cancer. They're certainly annoying the soft drinks vendors using them.

Great avatar btw.

Tiktok.

You said product, and I mean this legitimately. Not because of meme hate or hating on what is trendy, but because it is and has been a tool of the CCP. This isn't really in question, and it was one of the first large platforms to entirely erase the idea of a timeline and fully devote itself only to a algorithm feed. One that bytedance has put their finger on the scales of many times.

The effect this has is hard to quantify, but the postmortem on it is going to be incredible as we unpack exactly how much this influenced the trends and politics among zoomers, and to what extent.