The cause of the burning sensation you feel in your muscles while exercising is twofold: it is partly due to the build up of lactic acid, but it is also due to a lack of oxygen. 1  You can ameliorate this by paying close attention to your breathing while you exercise.
| License Photo. NEW YORK, June 18 (UPI) -- Heading into Thursday, the highest level the Nasdaq had ever reached was 5,132.52 -- a mark set in March 2000. At the close of trading, the composite was nearly a half-point higher -- and good for a new all-time record.
The global energy consultancy PFC Energy has published the top 50 energy companies of the world for 2009 based on market cap. PetroChina (NYSE:PTR), the integrated National Oil Company [NOC] of China, is the highest ranked company with a market cap of $353 B. PetroChina beat last yearâs winner of the top spot ExxonMobil (NYSE:XOM) of the U.S.