Terpenes, also known as terpenoids, these are the chemical compounds that give each strain its unique smell. They are the essential oils produced by the plant and they interact synergistically with cannabinoids to provide for a range of different effects. For example, a terpene called myrcene (also found in lemongrass) possesses muscle-relaxing, anti-depressant, anti-inflammatory properties, while the terpene pinene (also found in pine needles) can increase mental focus and energy. See the video answer for even more detail.
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