Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368
Aged
A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.
Elderly
D000375
Aging
The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.
Senescence,Aging, Biological,Biological Aging
D000758
Anesthesia
A state characterized by loss of feeling or sensation. This depression of nerve function is usually the result of pharmacologic action and is induced to allow performance of surgery or other painful procedures.
D000860
Hypoxia
Sub-optimal OXYGEN levels in the ambient air of living organisms.