Bad knees may be more of a guy thing

Related: Men's health

1. Men's health
   1. Study: Penis size 'does affect attractiveness'
   2. Meningitis outbreak among gay men worries officials
   3. Testosterone doesn't boost functioning in older men
   4. Sauna visits may lower sperm count
   5. Guys get this disease, too -- but they may not know it
2. Top health stories
   1. Bring back PE: Exercise should be 'core' class, report says
   2. Teen birth rate drops, especially among Hispanics
   3. Mom in labor as twister destroys hospital
   4. Doctors print up 3-D splint for baby's blocked throat
   5. Death toll from SARS-like virus rises to 22
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