what is your body's engine
When your carâs engine is finely tuned and running optimally, you can certainly tell. Likely that is the case with your own body also, and when it is out of tune you know that too. Your thyroid gland is like the engine in a car â when it is under-active everything slows down leading to weight gain, fatigue, poor concentration, constipation, infertility, low libido, depression, slow heart rate, and low body temperature. When it is overactive, your metabolism speeds up leading to weight loss, anxiety, insomnia, fast heartbeat, and loose stool.