Clinical Trials

Inclusion Criteria:

• Age 18-40 years
• No chronic medical conditions other than seasonal or environmental allergies
• On no prescription medications other than second generation antihistamines (Cetirizine, Fexofenadine, Desloratadine, Loratadine, etc), oral contraceptive pills, or intrauterine devices.
• BMI 18.5-35 kg/m2
• Both normotensive and prehypertensive people are eligible and will be studied
• Not a current smoker or tobacco user
• Not pregnant or breast feeding and not intending to become pregnant or breast feed

Exclusion Criteria:

• The investigators will exclude subjects who have any medical or psychiatric disorders
• History of anxiety or depression, and those taking any medications other than non-sedating antihistamines or oral contraceptives.
• Those found to have depression on a depression screening tool (BDI-II) will be excluded. Current smokers will be excluded.
• All female subjects will undergoing a screening pregnancy test and excluded if positive.
• Subjects found to have significant sleep disorders will be excluded.