This test is useful for all, especially for people who have problems with the thyroid gland.
In the evening, before bedtime, take iodine, which is purchased at a pharmacy. Dip in iodine one swab for cleaning the ears and draw iodine to the armpit left hand three lines: thin, medium and thick. Wait until the line-dry your skin and lie down to sleep.
In the morning, look at your hand. If it is missing only the thinnest line, means that at you with iodine fine. The body is taken through the skin as much iodine as he needed.
If other than the thinnest disappeared and medium-thick line means that you do not have enough iodine in the body and that you should pay attention to the state of your health.
If you are missing all three lines, it means that you have a lack of iodine in the body and that you are particularly vulnerable thyroid gland.
This method is completely harmless because the body through the skin takes just as much iodine as they need.