<human>:  What is the difference between a mortgage and a loan?
<bot>: The key difference between a mortgage and a loan is that a mortgage is typically secured by a property or piece of land as collateral, while a loan is not secured by any form of collateral. Mortgages usually involve larger sums of money and longer repayment terms than loans, although this is not always the case. Additionally, mortgages typically include interest payments, while loans may not.