Stress, often trivialized, is a factor that should not be underestimated. In the case of prolonged stress, cortisol levels (the stress hormone) remain elevated. However, this hormone damages brain cells and impairs memory. Poorly managed stress can therefore, in the long term, promote the onset of Alzheimer’s.
Added to this is the problem of sleep. During the night, the brain “cleanses” itself, in particular by eliminating beta-amyloid proteins, responsible for the plaques characteristic of the disease. Poor sleep, in quantity or quality, hinders this natural process and weakens the central nervous system.
3. Lack of cognitive stimulation and isolation
Our brain is an organ that needs to be stimulated. In the absence of regular intellectual activity, neural connections weaken. Reading, learning, playing and discussing help keep brain circuits active and strengthen what is called “cognitive reserve”.
Alzheimer’s disease affects isolated people more severely, both socially and intellectually. Prolonged loneliness increases the risk of depression, which is recognized as an aggravating factor. Maintaining social relationships and engaging in stimulating activities is therefore essential at any age.
4. Tobacco, alcohol and head injuries
continued on the next page
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