Body surface area. In physiology and medicine, the body surface area is the measured or calculated surface of a human body. For many clinical purposes BSA is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass.
A life estate deed is a deed in which you transfer the future ownership of your home but retain the current ownership, creating both a present interest and a future interest in the property. You, as the present interest holder, have the exclusive right to enjoy and live in the residence until you pass.
A life estate deed is also a form of co-ownership. Both the life tenant and the remainder beneficiary have real interests in the property. But unlike other forms of co-ownership, they do not have property rights at the same time as each other.