Researchers do not know exactly what causes prostate cancer. But they have found some risk factors and are trying to learn just how these factors cause prostate cells to become cancer. On a basic level, prostate cancer is caused by changes in the DNA of a normal prostate cell. DNA is the chemical in our cells that makes up our genes. Our genes control how our cells function.
Barn definition, a building for storing hay, grain, etc., and often for housing livestock. See more.
In addition, barns may be used for equipment storage, as a covered workplace, and for activities such as threshing. The word barn is also used to describe buildings used for uses such as a tobacco barn or dairy barn.Byre is a word for one type of barn meant for keeping cattle. Apple barn or fruit barn â for the storage of fruit crops. 2  Bank barn â A multilevel building built into a banking so the upper floor is accessible to a wagon, sometimes accessed by a bridge or ramp. 3  Bridge barn or covered bridge barn â general terms for barns accessed by a bridge rather than a ramp.