Bloodletting is a solution. Donate blood as frequently as they allow you. Plasma donation works even better (higher frequency) if you trust the machines and the process.

Sadly, it's not a complete solution as some harmful substances bio-accumulate in other tissues. A benefit may be had regardless as some substances leach back into the blood if the concentration gradient is sufficient.

I totally agree. I actually started Wyndly (https://www.wyndly.com/) because I realized I was poisoning myself with antihistamines every single day for my allergies. I did the research, and antihistamines are know to cause anxiety, depression, weight gain, and brain fog!

I applied for YC. We got in!

And now we're chipping away at this corner of human health: treating the root cause of allergies with protein exposure therapy (allergy immunotherapy) instead of covering up allergy symptoms with ineffective (and, it turns out, dangerous) antihistamines.

The trend of making these medical tests cheaper and easier to obtain is going to result in a lot of positive change. Certainly for individuals and hopefully the anonymized data helps get the spotlight on larger trends.

If you have ever visited the ruins of Pompeii, you might have seen all the lead pipes that provided water to the city. I wonder how that affected the health of the citizens back then.

I wonder how much this is causing the worldwide swing toward authoritarianism. Lead exposure can cause lower conscientiousness, lower agreeableness, and higher neuroticism.[1]

Especially considering the age of people who actually vote and who the politicians in power are (at least in the U.S.)

[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC8307752/

"This will be a big business" No. It shouldn't be a "business", it should be laws that are enforced fast, education, public shaming of companies putting poison in their products. Volatile Organic compounds in paint were known to be poisonous since 17th century (see Bernardino Ramazzini's works). Just listen to the goddamn scientists for once. You can't solve a problem caused by capitalism corner cutting with more capitalism.

Don't forget the poisons we've known for ages and yet overconsume: sugar, alcohol, ...

One of those things where it’s important to make a concerted effort to limit risk.

…but then also to stop worrying after reasonable steps were taken because it’s an endless rabbit hole

A former coworker who was a serious gun enthusiast experienced dangerously high levels of lead in his bloodstream - he had chronic headaches and other bodily pains. He visited shooting ranges several times per week, and also packed (assembled? made? I'm not sure the nomenclature) his own bullets. His doctors believe he aspirated atomized lead particulate doing so much shooting practice, and/or bullet manufacture. He underwent chelation therapy (a protocol involving taking certain medications that bind to heavy metals in the blood, and the patient excretes it out via urination) to reduce lead levels.

When I was a baby we lived virtually directly under the Sydney Harvour Bridge, I got lead poisoning as a result of runoff from the bridge. The combination of leaded petrol and leaded paint runoff poisoned the soil in playgrounds and the area more generally.

My case and probably those of others lead to a huge cleanup of the bridge.

My life has been absolutetly plagued with chronic health and "developmental" problems. Neurodivergence and other conditions litter my family tree, but they seem to effect me much more severely than they do most of my relatives.

I often find myself wondering these days if my life would have featured significantly less hardship were it not for the lead poisoning.