Viscoelasticity is a property of materials that exhibit both viscous and elastic characteristics when deformed. Viscous materials, like honey, resist flow and take time to return to their original shape, while elastic materials, like rubber, quickly return to their original form after being stretched. Viscoelastic materials, such as polymer and biological tissues, combine these behaviors, allowing them to absorb energy and dissipate it over time. This unique behavior is important in various applications, including engineering, biomechanics, and material science. Understanding viscoelasticity helps in designing products that can withstand stress and strain, such as shock absorbers and medical implants.