Without tight seals, the skin could not perform its primary function as a continuous barrier that keeps germs out and essential body fluids in. (uchospitals.edu)
Its simple design allows for a variety of essential body building and strength training exercises. (aimworkout.com)
Since the body requires the element of iodine for essential body functions, use of Lugol's iodine as a vegetable wash and water purifier has been recommended for decades. (amazon.com)