Aromatherapy has been around for 2500+ years. If it was hokey Im sure it would have died out long ago.Scents can trigger fond childhood memories ? NOT MY GRAPHIC CLICK LINK TO GO TO SOURCE
Sometimes it can trigger intense feelings and emotions. Think about a preganant woman — a smell can trigger a volital reaction if its not received well.

What about a baby who is relaxed with lavender.
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So your not sure about oils. Just think about that. SMELL triggers emotions. 
Doterra has some wonderful preblends made up already- No mixing and counting drops. I love CITRUS BLISS and SERENITY 

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