Medary.com

Hmm.

From ScienceDaily:

“One possible explanation is through cholesterol’s important role in the inflammation process,” he noted.

“As you exercise, your muscles can become sore because they are rebuilding muscle mass. More cholesterol may result in a more robust inflammatory response. We know that inflammation in some areas, such as near the heart, is not good, but for building muscles it may be beneficial, and cholesterol appears to aid in this process.”

Riechman said that subjects who were taking cholesterol-lowering drugs while participating in the study showed lower muscle gain totals than those who were not.

“Needless to say, these findings caught us totally off guard,” he explains.

It appears that we know about as much as the human body's actual biochemistry as we do about the Earth's climate.