**3. Conclusions**

Essential oils are natural substances extracted from aromatic plants with biological properties, including antioxidant and antiinflammatory activities. This chapter reviewed the effects of essential oils on CVD-related factors. Evidence has shown that essential oils have multiple effects, improving lipid balance, liver function, and endothelial function; reducing blood pressure, diabetes induction, and oxidative stress; enhancing vascular relaxation; and inhibiting thrombosis, inflammation, and angiogenesis. Essential oils and their active components may therefore be promising therapeutic agents for CVDs. Studies are needed to clarify the effects of these oils on patients and to elucidate their specific mechanisms of action.
