How often should a car stop when driving on the highway?

[AdamLee]

A car must stop after driving continuously for 4 hours on the highway. Here are some additional details: 1. Driving in summer can easily lead to fatigue: Driving in hot summer weather or in an overheated cabin environment, with high temperatures and poor air circulation, can easily cause fatigue. Drivers often feel mentally exhausted, with gradually blurring vision and slowing reactions, especially when driving in the afternoon, which can lead to drowsiness or even momentary memory loss. Forcing oneself to drive under such conditions can result in traffic accidents. 2. High-speed driving can easily lead to fatigue: As speed increases or when driving at high speeds for extended periods, drivers may experience varying degrees of fatigue. When driving at high speeds, the driver's attention is highly focused, leading to prolonged mental tension. As speed continues to rise and driving time extends, the driver will gradually feel fatigued.

[DelTeagan]

I've been driving for many years, and my experience tells me that on highways, it's advisable to take a break every two hours or so, resting for about ten to twenty minutes. It's not a strict rule, but the risks of drowsy driving are significant—attention wanes, reactions slow down, and the likelihood of accidents increases. After stopping, stretch your legs, have some water, and you can also take the opportunity to check tire pressure or the engine's condition. I've learned my lesson; once, I didn't stop while rushing, started dozing off, and nearly hit the guardrail. Safety comes first. Planning a few more service area stops makes the journey smoother and more secure. After making this a habit, I lower the car music, avoid slamming the accelerator—protecting myself without affecting other drivers.

[CoreyAnn]

From a health perspective, I always remind myself not to sit too long while driving. I make it a habit to stop every 100 to 150 kilometers. The body needs adjustment, as prolonged sitting is bad for the back and cardiovascular system. Getting out of the car to walk around for a few minutes, stretch, and breathe some fresh air instantly refreshes me. If driving for more than two hours, accumulated physical fatigue can lead to drowsiness. Bringing a water bottle to stay hydrated is essential, especially on hot days to prevent heatstroke. Regular exercise can enhance endurance, but short breaks on the highway are indispensable—maintaining vitality is key to long-term safe driving.

[Jon]

Cars aren't indestructible; prolonged high-speed driving can cause mechanical issues. I recommend stopping every two hours to let the engine cool down. High-speed driving heats up tires and brakes, and short breaks can prevent overheating blowouts or excessive wear. Check fluids and lights—these small actions save you from future repair hassles. From experience, continuous driving beyond three hours significantly increases risks. When parked, engage the handbrake and ensure you're in a safe area—this also extends your vehicle's lifespan.