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.
Why it's a winner: You can walk anywhere, anytime. Use a treadmill or hit the streets. All you need is a good pair of shoes. How to: If you're just starting to walk for fitness, begin with five to 10 minutes at a time. Add a few minutes to each walk until you get to at least 30 minutes per walk.