Give scientific reason : Organ donation after death is considered very valuable.

Answer: Because the healthy organs of one dead person can be transplanted into several patients whose organs have failed, and can save their lives or restore their sight.

Organs such as the kidneys, liver, heart, lungs and eyes (cornea), and tissues such as skin, keep working for some time after brain death or death. Many patients with kidney failure, liver failure or blindness wait for a donor, and no machine can fully replace these organs. One donor can therefore give a new life to many people, while the organs would otherwise be wasted after cremation or burial.