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.
Every electric kettle I have ever used has heated the water until it is boiling vigorously and then stopped. As @Jolenealaska says, when it's boiling, it's boiling and the temperature that water boils at is 100C at sea level, minus about 1C for every 300m of altitude. â David Richerby Oct 20 '14 at 21:03.