Your driving posture tends to be worse when you drive long.
As driving posture affects the health and safety of the driver, it is very important to maintain correct driving posture. Let's take a look at each of the elements of driving posture, from the seat to the position of the steering wheel!
When you sit in the driver's seat, press your hip against the seat so that your back can be aligned with the backrest of the seat. If you sit closer to the edge of the seat, the backrest of the seat may not support your back properly, causing stress on your back when you drive long distances. In addition, when you take corners or need to suddenly turn the steering wheel, your body may be twisted due to inertia. As it is difficult to correct your posture while driving, make sure you pull the seat forward and press your hip against the seat before you start driving. At this time, the angle between the seat and the backrest that will allow you to have the most comfortable posture is 100-110 degrees. If you feel your shoulders to be slightly elevated when you hold the steering wheel, you are advised to have your shoulders align with the seat by adjusting the backrest.
Maintain the height and distance that make your arms slightly bent when you sit in the driver's seat and hold the steering wheel. If the distance between your torso and the steering wheel is too close, your arms may receive a lot of pressure over time. On the contrary, if the distance is too far, your body is likely to move following your handling of the steering wheel. It is best to situate your hands in the position of 9:15 or 10:10 while holding the wheel.
Some skilled drivers tend to grasp the steering wheel using only one hand. In a crisis, however, their reaction speed will be significantly reduced and they will not be able to effectively hold on to the steering wheel when the car shifts strongly. So, driving with both hands is essential!
As for the brake pedal, it is ideal to maintain the angle of your knee to around 130 degrees when you press the pedal as deeply as possible with the entire sole of your foot placed on the pedal. If your knees are straightened, your legs may be injured seriously in the event of a car crash, and you are likely to put extra wear on your body as you press the pedal only with the power of your ankle.
It is best to use the sole of your foot when you press the pedal. If it is impossible to obtain a proper distance from the pedal and the steering wheel, you are advised to adjust the distance by installing an additional pedal.
The headrest used to support your head protects you from becoming injured in an accident by preventing your head from being bent. The height of the headrest that causes your eyes and head to view slightly downward is ideal. Adjust the height of the headrest so that your ears are in alignment with the headrest. Some drivers remove the headrest when they drive because they feel uncomfortable. In this case, your neck cannot be protected in case of an accident. So, you are advised to use an aid such as a neck pillow rather than removing the headrest.
Skilled drivers may be tempted to neglect correct driving posture!
It is essential to form a habit of having good driving posture as an incorrect posture will threaten the safety as well as the health of the driver. Please remember you can enjoy safe driving only with correct driving posture! 
