by Dr. Harry Fisch (urologist and the author of The Male Biological Clock), March 2010
less than 100 mg/dL - ideal blood-glucose level. Higher levels could indicate diabetes.
less than 100 mg/dL - ideal LDL level. This "bad cholesterol" is the most important cholesterol to track.
<=4 - ideal level of PSA, or prostate-specific antigen, which can signal the presence of cancer in the prostate
>300 ng/dL - ideal testosterone level. Low levels are associated with infertility, fatigue, and low sex drive.
