How the Van Allen belts provide us with magnetic sunscreen?

The Van Allen belts act as a barrier that traps charged particles from the solar wind, preventing them from reaching Earth's surface and protecting us from their harmful effects. The Earth's magnetic field helps to contain and shape the Van Allen belts, deflecting incoming solar particles away from the planet. This 'magnetic sunscreen' shields us by absorbing and redirecting the majority of the charged particles that would otherwise pose a risk to life on Earth.