Because brown adipose cells function primarily as energy consumers and white adipose cells function primarily as energy stores, the common origin of these cells has been debated. In general, brown and white adipose cells are not found together; they form distinct tissues.
Benefits of the Tru-Spec Tactical Shirt: Important Things to Consider before Purchasing the Short Sleeve Tactical Shirt: The Tru Spec tactical shirt is designed to look and feel good so that you will want to wear it as often as you can.
Top 10 unbelievable historical concurrencies. A thermal shirt is usually a round, or crew, necked shirt with long sleeves. Its purpose, like all thermal clothing, is to retain body heat in cold temperatures. Many of these shirts are made of silk, nylon, spandex, polyester, fleece, wool or a cotton blend. They are typically used as base layer for cold weather dressing.