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.
While most of the major stock indexes track hundreds or thousands of different stock prices, the popular Dow Jones industrial average includes just 30 stocks in the index calculation. The Dow Jones Company makes every effort to ensure these 30 stocks reflect the U.S. economy and stock market as a whole. History The Dow Jones industrial average was developed by Charles Dow in the 1880s and 1890s with the first publication of the index value in 1896. Dow initially used the share prices of 12 stocks to calculate the average, using a simple average of the 12 stock prices.