A 2013 study found immersing the body below the neck for 5-15 minutes in water that was 50-59 degrees Fahrenheit helped ... They are safe for most people, but if you have a condition like cold hives ...
Choose a hat with tightly woven canvas and a brim all the way around to shade your face, ears, and neck. Avoid straw hats with holes that let sunlight in. Wearing sunglasses consistently when you're ...