Sperm freezing is a simple yet effective process that involves collecting and preserving a man's sperm at a young and fertile age for potential use in the future. The procedure allows the sperm to be stored at very low temperatures, typically in liquid nitrogen, which halts all biological processes and keeps the sperm viable for an extended period. When the man is ready to conceive, the frozen sperm can be thawed and used for assisted reproductive techniques, such as in vitro fertilization (IVF) or intrauterine insemination (IUI).