The scale I have at home changes its body fat measurements depending on the height I input and how hydrated I am. If for some reason I'm parched and haven't been near water all day my body fat will register as several percentage points higher than usual, even though nothing has changed from the previous day.
The key is to weigh yourself consistently - at the same time every day, on an empty stomach, and with proper hydration - and to pay attention to increases and decreases instead of what the actual number is.
And on the sixth day, Davydenko was given the gift of Feli-Hair. Feli-Hair, which always looks like you just stepped out of the shower and your showerhead was spraying out jets of liquid sexiness. Feli-Hair, which always stays in place except for that one strand which falls sensually, coquettishly across part of the forehead. Feli-Hair, rich chocolate in color when wet and golden as a sunrise when dry.
And Davydenko loved the Feli-Hair, and it was good. Amen.