ITV's From The Heart campaign is trying to encourage more people to sign up to the organ donor register and ultimately, help save lives.
ITV News London has today had exclusive access to the Royal London hospital in Whitechapel, where around 80 transplants are carried out each year, and a very special one happened just last night.
Ria Chatterjee has spent the day at that hospital.
Vincenzo has been transformed from a patient so sick he could not wash his face to a man who strides confidently with a gleam in his eye.
Alex Smith was diagnosed with a heart problem but after receiving a transplant he feels he has been given the "greatest gift of life."
While 90% of people believe donating an organ is the right thing to do - only 30% are signed up to the organ donor register.