Thyroid hormone tells all of the cells in your body how busy they should be. Too much thyroid hormone (hypERthyroidism), and your body goes into overdrive; not enough thyroid hormone (hypOthyroidism), and your body slows down.
Place the pot on the stove and turn the heat to high. Check for steam escaping from under the lid, then lift the lid carefully to see how the water is doing. Look at the water. If large bubbles are rising from the bottom of the pot to the surface, the water is boiling.
An accurate thermometer will read 212Â°F in boiling water at sea level under normal atmospheric conditions, but you probably don't live at sea level and your atmospheric pressure varies constantly from day to day. The first step is to determine the boiling point for your location using this Boiling Point Calculator.