Subject is willing to avoid alcohol consumption 24 hours prior to visit(s)
Subject is willing to avoid wearing makeup to the study session or willing to remove it with facial wipes before the face scans
Subject is willing to shave facial hair if predetermined during the informed consent session it will interfere with TOI measurement
Able to speak, write, and read English
Provision of written consent to participate
GENPOP Study
Study subject is 18-65 years of age, inclusive
Subject does not smoke (or has quit for at least 6 months)
Subject is not taking medication that may interfere with the study
Subject has no health conditions that would prevent completion of the trial as indicated on the general health questionnaire (GHQ)
Subject is willing to fast overnight (\~8-12 hours)
Subject is willing to refrain from vigorous exercise for 48 hours
Subject is willing to eat the exact same food the day prior to each visit to the testing site
ATHLETE Study
Study subject is 14-45 years of age, inclusive
Subject is participating in team sport training/competition
Subject is participating in a coach-led practice
You may not be if
Both Study Arms (GENPOP and ATHLETE)
Subject has participated or currently enrolled in a clinical trial within the past 30 days
Subject has participated in any PepsiCo trial within past 6 months
Subject has a condition or is taking medication that the investigator believes would interfere with his/her ability to provide informed consent, comply with the study protocol, which might confound the interpretation of the study results, or put the person at undue risk
Subject is allergic to alcohol or facial cleansing wipes
Subject is employed by, or has a parent, guardian, or other immediate family member employed by a company that manufactures any products that compete with any Gatorade product. If subject is unsure if a company would be considered a competitor to Gatorade, they will be asked to please let the study investigator know the name of the other company and the nature of their relationship to that company before they sign the informed consent.
GENPOP Study
Subject has a health condition or is taking medication that can be worsened by fluid restriction (participants who opt-in to fluid restriction study arm only)
