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The testing begins at the CTRC on the CU campus, where the participant is met by a tester. The main testing takes place at the ARC Building (3100 Marine St) on the east Campus of the University of Colorado Boulder. The day-long testing session takes about seven (7) hours, including a one hour lunch break.

There are four types of assessments:

1. Online questionnaire

2. In-person cognitive assessments

3. In-person physical assessments, including drawing a blood sample

4. Some participants will provide daily assessments via smartphone for two weeks