Inclusion Criteria:  Age between 18 and 28 BMI >20 and < 25  Exclusion Criteria:  Diabetes type I or II (self-report) Diagnosis of thyroid disease (including goiter, hyperthyroidism, hypothyroidism, thyroiditis) (self-report) Diagnosis with cancer including skin cancer (self-report) Diagnosis or evidence of Raynaud's Syndrome or systemic sclerosis (self report) Previously or currently diagnosed with SARS-Cov-2 infection/COVID-19 (secondary to unknown immune responses) Any vaccine administration within two weeks preceding the study procedure Currently pregnant Currently taking any prescribed medication other than oral contraceptives Treatments for weight loss or any other supplements that may alter weight or metabolism are not acceptable (vitamins are acceptable) Has consumed nicotine (smoking, inhaling, ingesting) within the last within the last 6 months Has used illicit drugs within the last 6 months Any medical, psychological, or social condition that, in opinion of principle investigators, would jeopardize the health or well-being of the participant during the study procedure or integrity of the data