seaweed thyroid function

Thyroid dysfunction is epidemic in North America. One in ten adult American women have been diagnosed with thyroid disorders and some endocrinologists suggest that as many as 25% of adult American women are presenting with clinically detectable thyroid dysfunction. What factors are at play here, and what can be done about it?

What hazards do nuclear radiation pose to your thyroid gland? And how did the Chinese solve their country-wide, iodine deficiency problem.