A kind of blank canvas, stem cells can specialize or develop into numerous types of cells. Additionally, stem cells may now be produced from a variety of adult cell types, allowing for their widespread application in research. Patients’ samples can also be utilized to make cells that can be researched and experimented with in the lab. However, in order to conduct these research, a large number of cells had to be taken from numerous different donors and then cultured individually. Now researchers have developed a method for studying stem cells from many different people in the same dish, which could have major implications for the study of complex traits, drug safety, or personalized medicine.