Daily Mail does seem to have more reference to thyroid than chance alone...
From a test that calculates your cholestorol to one that checks for sexually trasmitted diseases: Seven blood tests anyone over fifty MUST have
5 THE THYROID TEST
WHY DO I NEED IT? Women in their 50s and 60s are more susceptible to an underactive thyroid, a condition where the thyroid gland doesn’t produce enough hormones. Common signs include tiredness, weight gain and feeling depressed.
A shame that they don't link any of the tests/issues at all - except for needing them if you are over fifty and female.