TY  - JOUR
T1  - DIet, exercise habits, and risk of alzheimer disease
AU  - Blumenthal JA, Babyak MA, Sherwood A
Y1  - 2009/12/09
N1  - 10.1001/jama.2009.1790
JO  - JAMA
SP  - 2431
EP  - 2432
VL  - 302
IS  - 22
N2  - 
First, self-selection represents a potentially important source of bias, since individuals who adopt healthy lifestyle habits may be different in various ways from those who do not engage in such habits. Second, self-report measures of diet and exercise can be inaccurate. The accuracy of the Food Frequency Questionnaire is controversial,2 especially in individuals who may already have memory impairment, and objective measures of physical activity, such as accelerometers, are likely more accurate.

SN  - 0098-7484
M3  - doi: 10.1001/jama.2009.1790
UR  - http://dx.doi.org/10.1001/jama.2009.1790
ER  -