Take some time to calculate your weekly leisure screen-time ratio. It’s easy to do. Simply add up your screen time (Television + Non-work Internet + Gaming), all divided by your hours of unpaid consciousness (168 hours in a week, minus the hours you spend in bed or at work). Let’s say you watch television 3 hours a day, surf 2.5 hours a day, spend 2 hours a week playing computer solitaire, lie in bed 8 hours a day, and work 40 hours a week. This amounts to ((3x7) + (2.5x7) + 2)/(168—((8x7) + 40)) = 40.5 hours of screen time / 72 non-work waking hours = 0.563, or 56.3 percent of leisure time
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