What Causes Thyroid Disease?
We can’t have a conversation around thyroid recovery and iodine, without first talking about what causes thyroid disease in the first place. The causes mostly come down to genetics, with a higher likelihood with regard to age and gender (which is also, of course, genetic).
What do the genes that cause thyroid disease do? They are typically responsible for affecting certain enzymes that regulate iodine (called deiodinase pathways). Here is how all of this plays out, super simply…
When it comes to iodine, there are essentially two kinds of groups that humans come in:
- The first is the group that can do well in environments that contain a lot of iodine
- Another can do well in environments that are low in iodine.
Why did it play out this way? Over time, humans have evolved in different ecosystems when it comes to iodine. One big group was close to oceans, and the other was far away, which made the former group more predisposed to managing high levels of iodine.
The other was more inland and closer to freshwater, meaning that they needed to get good at vacuuming up as much iodine as possible into their thyroid (because they were surrounded by so little). Unfortunately, once you start vacuuming in it, it’s tough to stop.