What should you do while driving in fog?

When driving in fog, using low beam headlights is the recommended approach because they are designed to illuminate the road directly in front of the vehicle without causing glare. High beam headlights can reflect off the fog droplets, creating a blinding effect that reduces visibility rather than improving it. This reflection can make it difficult for drivers to see the road and any potential obstacles.

Low beam headlights project light closer to the ground, allowing for better visibility of the road surface and markings, while minimizing the amount of light that reflects back to the driver's eyes. This enhances safety by providing clearer sight lines and allowing you to better judge distances and locate other vehicles.

In contrast, turning headlights off completely or using hazard lights is not advisable while driving in fog. This could severely limit visibility for both the driver and other road users, increasing the risk of accidents. Thus, using low beam headlights is the best practice in foggy conditions.