Simplify the following text for a Grade 5 native English-speaking person.
Original: The races are therefore very tough on the car , and also physically tough on the drivers , especially since the circuit is anti-clockwise , where the centrifugal forces in the many hard left turns push the drivers ' necks to the right , instead of left as in the majority of circuits on the F1 calendar .
Simplified: The races are also physically tough on the drivers . With more right turns , the drivers ' necks are forced to move to the left .