Thyroid hormones which causes the thyroid to enlarge (the resulting medical condition is called "endemic colloid goitre"; see goitre). This has the effect of increasing the thyroid's ability to trap more iodide, compensating for the iodine deficiency and allowing it to produce adequate amounts of thyroid hormone. Most of the thyroid hormone circulating in the blood is bound to "transport protein"s. Only a very small fraction of the circulating hormone is free (unbound) and biologically active, hence measuring concentrations of free thyroid hormones is of great diagnostic value. When thyroid hormone is bound, it is not active, so the amount of free
Leave a Trace Leave a Trace "Leave a Trace" is a song by Scottish synth-pop band Chvrches from their second studio album "Every Open Eye". It was released as the band's first official single on 17 July 2015 via Virgin and Goodbye Records. During an interview with "Pitchfork", Lauren Mayberry said of the song: "Leave a Trace" was streamed on the band's official SoundCloud page. The song received generally positive reviews. Luke Winstanley of "Clash" called the song "another highlight, outrageously infectious and immediate, all centred around a gentle but persistent bass pulse." Sam Shepherd of "musicOMH" felt it "finds Mayberry certain of