Weak interactions, also known as weak nuclear forces, are one of the four fundamental forces in nature. They play a crucial role in processes like beta decay, where a neutron transforms into a proton, emitting an electron and an antineutrino. This force is responsible for certain types of particle interactions and is essential for the stability of atomic nuclei. Unlike strong nuclear forces, which hold protons and neutrons together, weak interactions operate over very short distances and are much weaker in strength. They are mediated by W and Z bosons, which are particles that carry the force. Understanding weak interactions helps scientists explore the behavior of subatomic particles and the evolution of the universe.