November 23, 2012. Global Test Solutions has announced that it now offers the DL Series electronic direct-current (DC) loads from NF Corp. The loads offer high-speed feedback control; fast response ...

You can check your testosterone level with a simple blood test, either at your doctor’s office or with a home test kit. Share on Pinterest Tom Werner/Getty Images Testosterone (sometimes shortened to ...

Thyroxine (T4) is the main hormone your thyroid makes. Your thyroid hormones are important because they control how your body uses energy from the food you eat. (Photo Credit: iStock/Getty Images) T4 ...