My New Year's wish is for an effective sunscreen

摘要

The United States, bastion of high technology, may in the next year or two finally catch up to the rest of the world in the availability of effective sunscreen preparations. In a rare show of bipartisanship between Republicans and Democrats and of cooperation between Congress and the White House, Congress passed and the president has now signed into law the Sunscreen Innovation Act. Types of UV The sun's ultraviolet rays are of two major types, both deleterious to human skin and health. UVB rays cause burning and contribute to cancer risk, and UVA rays, penetrating more deeply, cause skin aging and also increase cancer risk. SPF, the skin protective factor number that we've all come to love and search for on our sunscreen's label, measures only the sunscreen's effectiveness in blocking UVB rays. Thus, it does not tell the whole story.