I'd recently started attending a Yoga class, to help with my running (as I was always getting injured or picking up niggles, mainly because I hardly ever stretched properly). My awesome Yoga teacher, Karen, started diffusing essential oils in her studio, I think initially to provide a pleasant aroma without using toxin-laden air fresheners. We all wanted to know what the amazing smell was! Slowly over time, Karen started introducing different oils to complement the work we we