BIOL355 Lecture Notes - Lecture 5: Senescence, Chronic Obstructive Pulmonary Disease, Treatment As Prevention
3 Feb 2016
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Document Summary
Disease increases with age (morbidity) but not related. Morbidity: the condition where an individual is so physically or mentally disabled by chronic disease that he or she becomes immobile or dependent on the care of others. Natural death can happen, but usually death is due to multiple diseases (comorbidity; more common in women) As we age the forces of biological aging will increase our risk of age-dependent mortality and this will either be from disease or wear and tear. Changing causes of death as people now living longer. People now live long enough to experience chronics. Often results in death if not treated. Elderly suffer from fewer acute diseases than young, but if do contract, much more serious consequences (lecture 5) Persistent in nature (get worse w/ time) Progressive (incremental stages, minor cellular changes-> disease) Have a clinical threshold (disease may develop for many years before symptoms appear) deaths. Result in progressive loss of organ function.
