Farmed fish often contain PCBs (polychlorinated biphenyls), industrial toxins that accumulate in your body. Here’s the kicker: PCBs have a half-life of 10-20 years, meaning it takes that long for just half the toxin to leave your system. To fully rid your body of them? That’s four half-lives—up to 80 years! Unless you plan to live past 100, some of these toxins will stay with you for life, adding to your body’s toxic load, damaging enzymes, and even your DNA. Over time, this can limit your body’