The good news is that an overactive thyroid (hyperthyroidism) shouldn’t affect the price of your life insurance provided:it’s well-controlled and under regular supervision with no complications.you don’t have any outstanding test results, follow-ups or investigations.you apply to the right life insurance company (some are to be avoided)there are no other health issuesAnd, you’ll be relieved that an overactive thyroid should not affect your application for specified illness cover or income protection.