The purpose of this study is to examine the effects of resveratrol on health and human performance. The study will evaluate cognitive function and several indicators of physical health before and after taking a resveratrol supplement or a placebo for three weeks.

Measurements

• blood laboratory parameters
• cognitive assessment changes
• body composition changes
• vascular endothelial response

Inclusion Criteria:

• men and women between 45 and 75 years of age
• Normal heart rate and Blood pressure
• Ability to use personal computer interface
• Successful completion of physical activity readiness questionnaire

Exclusion Criteria:

• Cardiovascular disease, uncontrolled hypertension, lung disease
• inability to tolerate exercise
• have taken grape related supplement in past 12 months
• current use of drugs or dietary supplements to enhance exercise performance
• allergy to wine, grape juice or grape seed supplements