Let me emphasize that point...

... that lifestyle is the cause of most disease. Here are statistics from the Center for Disease Control for 2000.

"The leading causes of death were

• Tobacco (435,000 deaths; 18.1% of total US deaths)
• Poor diet and physical inactivity (400,000 deaths; 16.6%)
• Alcohol consumption (85,000 deaths; 3.5%)
• Microbial agents (75,000)
• Toxic agents (55,000)
• Motor vehicle crashes (43,000)
• Incidents involving firearms (29,000)
• Sexual behaviors (20,000)
• Illicit use of drugs (17,000)."

Those of us who live pretty clean lives are most likely to die from #2 -- poor diet and physical inactivity.