There is no definitive age to start brain exercises for potential prevention of Alzheimer's.
However, it is recommended to begin early and consistently engage in these exercises due to the gradual nature of cognitive decline.
Genetic factors also have a significant influence on determining susceptibility.
The duration of the exercises should be enough to stimulate mental activity without causing stress or fatigue.
Further research is necessary to definitively determine how these factors interact with the development and progression of Alzheimer's.