HDF 100 Lecture Notes - Olfactory Bulb, Presbycusis, Ageism
Document Summary
Late adulthood: physical and cognitive development chapter 17. The number of americans 65 and older is growing, but society still isn"t embracing the aging population. The number of americans 65 and older is 35. 9 million and projected to double. Cataracts: clouding that develops in eye lens and obstructing the passage of light: by age 80, more than half of all americans either have a cataract or have had cataract surgery. Eye condition that develops when too much fluid pressure builds up inside of the eye. The increased pressure, can damage optic nerve that transmits images to the brain. Physical changes: presbycusis: age related hearing loss that affects about one person in three over the age of 65 sense of smell decreases (9x more) from youth to advanced late adulthood. Lose taste buds in the tongue with aging; foods must be more strongly spiced to yield the same flavor. The olfactory bulb in the brain responsible for processing smell becomes smaller.
