How does cryopreservation work?

Cryopreservation involves the careful freezing of biological materials using specialised techniques and equipment. The process typically includes the addition of cryoprotectants to protect the biological cells from damage during the freezing and thawing process. The samples are then cooled at a controlled rate and stored in liquid nitrogen at extremely low temperatures. This freezing technique effectively preserves the viability and functionality of sperm, eggs, and embryos, enabling their future use in fertility treatments.