When a car slides, it can cause little bits of rubber to break away from the tyre. They stick to the tread of the tyre, and separates the tyre from the track. For the driver, the effect is like driving on ball bearings. Careful driving can clear the graining within a few laps, but will have an effect on the driver's pace. Driving style, track conditions and car set-up all play a role in graining. OR Continuous miss-use of your heart can cause parts of it to break away, slowly falling apart. The damage caused sticks with you making living a normal life a little harder to live. Time and careful loving can mend the damaged heart, even if it does take a while. @vougehope on tumblr
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