I'm kind of surprised noone brought up one of the most common source of our self-inflicted physical woes: the snack/soda machine down the hall and our usually deplorable eating habits. That combined with the previously mentioned stress levels and largely sedentary lifestyles, it's a ticking timebomb in our chest and arteries....

Garbage In, Garbage out doesn't just apply to programming or data...

(and - stop staring at the Snickers bar on my desk!.....)