Why is it good to have strength in formula 1 raceing?

Strength is important in a driver's fitness. Drivers strength is, the max force that can exert against resistance (Dr. Jutley, 2003). A drivers head and helmet weighs about 6kg, add about 4g, as experienced in a grand prix, the neck has to support 24kg ([WWW], Channel 4 feature- F1 fitness, 2004). A race usually lasts between 50-70 laps with 12 corners a lap, In heat and humidity, that can drain away most of a drivers energy. Most corners of a track are right handers, but the Interleague track in Brazil, it is mainly left handers, so drivers will have to concentrate in strengthening their neck, during the run up to the race, some drivers will add extra padding in their helmet, to help support the neck.