There is a difference between the emotional tears associated with crying and the release of moisturizing tears that are needed for eye health and comfort. It is possible that the gland that produces your tears of crying has been impaired on one side. It is also possible that the system of tear drainage from the opposite eye has been partially obstructed and thus makes that eye appear to tear more. I suggest you see you ophthalmologist and discuss these issues with him/her.
Adult stem cells are more limited and specialized than embryonic stem cells
Explanation:
This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off this is what dictates how a cell functions.