Answer:
I think imma go with 1) Neurological development
Fatigue, depression, muscle & joint aches.
can develop: goiter or cancer
Old or late adulthood is the stage of growth in which diseases are easily and always present and sometimes due to weak immune system and other cause are chromatic diseases. Skin continues to lose elasticity, reflexes starts to slow and same with their reaction time. mobility and muscles strength begins to decrease, hearing and vision begins to dull. Mostly people with this age may have a lower function in their brain leading to intellectual diseases such as Alzheimer's disease.
