Admission of such testimony, if error, was harmless error, since the record shows a doctor provided expert testimony using similar terminology. See Elliott v. Elliott, 120 S.W.2d 631, 636-637 (Tex.Civ.App. — Fort Worth, 1938, writ dism'd). Golden Villa itself established the doctor's credentials as an expert medical witness in its direct examination of him.
A life estate and a reversionary estate in a tract of land are distinct and separate estates and may be owned in severalty. Brito v. Slack, Tex.Civ.App., 25 S.W.2d 881; 31 C.J.S., Estates, § 34 p. 43; 28 Tex.Jur. page 52; Elliott v. Elliott, Tex.Civ.App., 120 S.W.2d 631; Hensley v. Conway, Tex.Civ.App., 29 S.W.2d 416. The ownership of an interest in one such estate does not entitle one to participate in the other by partition as no higher estate can be acquired by partition.