Many athletes anecdotally report modifying their nutritional intake before competition in order to avoid gut problems, but no studies have evaluated whether emotional state impacts tolerance to pre-exercise feeding. Therefore, this study will use movie clips (stressful, horror, and funny/amusing) to induce different mood states and emotions, which will be followed by ingestion of food before endurance running on a treadmill. In addition, metabolic and physiologic responses to mood induction will be evaluated.

Inclusion Criteria:

1. Aged 18 to 55 years
2. Able to run for 30 min at a moderate-to-vigorous intensity without stopping
3. No diagnosis or signs/symptoms of cardiovascular disease (CVD) or metabolic disorders
4. Currently physically active (at least 3 days/week of exercise at a moderate or higher intensity)
5. No visual or hearing impairments interfering with ability to see and hear video clips
6. No allergies to ingredients in Boost drink

Exclusion Criteria:

1. Aged <18 or >55 years
2. Unable to run for 30 min at a moderate-to-vigorous intensity without stopping
3. A diagnosis or signs/symptoms of CVD or metabolic disorders
4. Currently physically inactive (< 3 days/week of exercise at a moderate or higher intensity)
5. Visual or hearing impairments interfering with ability to see and hear video clips
6. Allergies to ingredients in Boost drink