People looking to pocket some extra cash might ask, "Can I sell my kidney?" These are the parts of your body you can profit from—legally.

Here's the list of requirements for potential donors ... an exception exists in certain states when it comes to bone marrow. The body replenishes marrow like it does blood, meaning selling marrow ...

Scientists are exploring that futuristic vision by using special 3-D printers to make living body parts. Called bioprinters, these machines use human cells as “ink.” A standard 3-D printer ...