“Scientists believe that Alzheimer’s is caused by the abnormal buildup of proteins in and around our brain cells, although exactly what triggers this buildup is still unclear.
But what we do know is that our risk of developing Alzheimer’s is dependent on a range of genetic and environmental factors. And among these environmental factors are alcohol consumption and chronic stress.”
CNMRI: Neurology, Sleep Medicine, MRI 
what two habits?
your headline says Alzheimer risk is exacerbated “by these teo habits” yet the very brief article says nothing about habits.
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More detail if you click the link. Alcohol and Stress were mentioned, along with tobacco as a third issue. Basically it comes down to healthy living, eating right, avoiding obesity, exercise and avoiding toxic substances.
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