Evaluation of the Impact of a Nutritional Formulation on Cognitive Performance Following Stress Exposure.

This study is testing a nutritional supplement to see whether it can help healthy middle-aged women maintain cognitive performance (memory, focus, thinking) during stressful situations, compared to a regular caffeinated drink. **You may be eligible if...** - You are a woman between 40 and 60 years old - You drink caffeine daily - You are healthy, with no significant physical or psychiatric conditions - You drink coffee and are willing to consume the study products **You may NOT be eligible if...** - You currently smoke or vape - You have a food allergy or intolerance to the study products - You have been diagnosed with a psychiatric or cardiovascular condition - You take prescription medications (except contraceptives or hormone replacement therapy) - You have Raynaud's disease or circulation problems - You have had a hand/arm injury or infection in the past month, or have chronic pain or extreme cold sensitivity - You have had a brain injury or surgery - You work night shifts - You are pregnant or breastfeeding - You have previously taken part in a laboratory stress study Talk to your doctor to see if this trial is right for you.