Effects of a caffeine supplement on thinking and sleep
Part of Brain & nervous system, Mental health clinical trials.
This study tests whether a supplement containing caffeine, vitamins, and plant extracts can improve thinking, sleep, and overall well-being in healthy adults. If you are generally healthy and not taking many medications, you may be able to join.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are in good general health.
- You are between 18 and 75 years old.
- You are fluent in English.
- Your daily caffeine intake is between about 40 mg and 500 mg (roughly 1 to 4 cups of coffee).
- You are not pregnant, planning to become pregnant, or breastfeeding.
- You are not currently taking any prescription medications (except for specific exceptions like birth control, thyroid medication, or cholesterol/reflux treatments).
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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