The general age limit is 60 for tissue donation and 70 for eyes. Most organ donations are made by people pronounced brain-dead as a result of severe head injuries. While you are living, you can safely donate not only blood, but also bone marrow or a kidney. In some cases, an adult can donate a section of his or her liver or lung to a child or another adult. The criteria for donating blood are different from those for donating organs and tissue.
Donation is considered only when all lifesaving efforts have failed.
If you become injured or ill, your medical care is not compromised in any way by your previous decision to be a donor. The medical team treating you is completely separate from the transplant team. Major religions support donation as a beneficial and generous act. Some religious traditions even encourage donation as a humanitarian responsibility. Normal funeral arrangements are possible after donation.