Thyroid hormone: A chemical substance made by the thyroid gland for export into the bloodstream. The thyroid gland needs iodine to make thyroid hormones. The two most important thyroid hormones are thyroxine (T4) and triiodothyronine (T3).The thyroid gland is located in front of the neck just in front of the trachea.Last Editorial Review: 8/28/2013.he thyroid gland needs iodine to make thyroid hormones. The two most important thyroid hormones are thyroxine (T4) and triiodothyronine (T3). The thyroid gland is located in front of the neck just in front of the trachea. Last Editorial Review: 8/28/2013.
It is a gentle walking speed. One hour walking at 1 m/s moves you 3.6 km. If something is traveling at 1 km/h it moves 1 kilometer every hour. It is like a very slow walking speed. Kilometers per hour is often used for car speeds. Example: Highway speed is around 100 km/h. One hour at this speed moves you 100 km. Example: One minute at 60 km/h moves you 1 km.
If you are new to walking, start with 15 to 30 minutes of walk, three days in a week and then extend it up to 60 minutes for most days of the week. According to the Physical Activity Guidelines for Americans and NHS, it is recommended to walk for 150 minutes (two hours and 30 minutes) in a week.