The most common form of skin cancer. The study of biological processes giving rise to old age. Carrel Conducted experiments with cell doubling. Cellular Theories of Aging Theories which are based on changes that occur in structural and functional elements of cells with the passage of time. Codon Restriction Molecular theory of aging.
Death is intrinsic.
Comorbidity Concurrent health conditions. Occurs when an individual is affected by several diseases simultaneously. Compression of Morbidity A shortening in the length of time between onset of disease and death. Dementia Global deterioration of intellectual and cognitive function. Characterized by defects in orientation, memory, intellect, judgement, and affect.