When relative humidity is kept at about 50%, office workers have fewer respiratory problems (specifically in the winter) and generally feel better. Higher humidity makes the office feels stuffy.hen relative humidity is kept at about 50%, office workers have fewer respiratory problems (specifically in the winter) and generally feel better. Higher humidity makes the office feels stuffy.
The Dow Jones Company selects the average's stocks as the most representative companies of the different U.S. industrial sectors. Most of the Dow stocks are household names such as Coca-Cola, Walmart, AT&T;, Bank of America, Boeing, Exxon Mobil and UnitedHealth Group.
Index Investing: The Dow Jones Industrial Average. The Dow Jones Industrial Average (DJIA) contains 30 of the largest and most influential companies in the U.S. It is the most recognized index in the world, and the one that is frequently referred to as the market. Despite its popularity, however, the DJIA has some weaknesses as a benchmark for the overall market.