Normal PSA Levels by Age: A Valid Way to Assess Prostate Cancer Risk?

Can we count on normal PSA levels by age? Regardless of any PSA reference range for different age groups, there’s actually no ‘normal’ prostate-specific antigen level that guarantees you’re free from prostate cancer. Other than the fact that prostate-specific antigen (PSA) screening is a simple blood test, little else about this cornerstone of prostate cancer…

Research Sheds Light on Vitamins For Eyesight

Before you plunk down your hard-earned cash on supplements containing vitamins for eyesight, be sure you know which have data to back up the label claims. Thanks to the landmark Age-Related Eye Disease Study (AREDS and AREDS2), we know that high-dose vitamins for eyesight supplements containing vitamin C, vitamin E, copper, zinc, and the antioxidant…