Most driving emergencies give you less than two seconds to react, an object in the road, a car crossing your lane, a sudden stop ahead. What you do in that window matters more than almost anything else you do behind the wheel, and yet very few drivers ever practice or even think through it in advance.
Modern cars with anti-lock brakes are built for this: press the brake pedal firmly and hold it, don't pump it. The car's system will handle the wheel-locking on its own. Keep steering inputs small while braking hard, since a car under heavy braking is more sensitive to sudden wheel movement.
The best evasive maneuver is the one you never have to make, because you spotted the hazard early enough to slow down or change position gradually. Scanning well ahead of your vehicle, not just at the car directly in front of you, is what actually buys you the extra second that turns a full-panic swerve into a calm lane change.
These reactions aren't things most drivers pick up naturally, they're trained habits. Our defensive driving course walks through hazard recognition and emergency response so the right reaction is already familiar if you ever actually need it.