Lactic Acid = Bad, this is probably one of the largest myths in BB.

"But that, it turns out, is all wrong. Lactic acid is actually a fuel, not a caustic waste product. Muscles make it deliberately, producing it from glucose, and they burn it to obtain energy."

http://www.nytimes.com/2006/05/16/he...erland&emc=rss

FEEL DA BURN!