Gupta has gotten more attention than most searching for organ donors online, and he’s using his platform to promote how simple donating bone marrow has become. No longer is a painful needle to the hip the only method. Instead, the process is similar to giving blood. It usually takes two to four sessions of two to six hours each for a person to give bone marrow. Unlike donors of vital organs like kidneys, marrow donors can give again and again. “Rather than just one transplant they could enable 10 or 20,” said Montgomery.