Ever wonder why your thyroid could be behind your weird bathroom schedule? This article goes deep on how T3 and T4 hormones shift your gut's speed, mess with your poop schedule, and even shake up your microbiome. You'll get real data, helpful advice, and learn why some folks deal with constipation or the opposite, all thanks to those tiny thyroid hormones. We dig into the changes down to your bacteria level—no stone left unturned. If you want answers about your gut and your thyroid, this read covers the science and the practical tips you crave.