1. Stress Relief. Create a calming effect in your home with your essential oil diffuser. Some recommended oils for promoting calm and easing anxiety are bergamot, chamomile, rose, and frankincense. 2. Ward Off Illness. Diffusing essential oils can help boost your immunity, reducing the likelihood of a cold or flu. Oregano oil can help prevent flu, peppermint can ward off a cough or cold, and lemon can help prevent or reduce the severity of viruses. 3. Boost Your Mood. On the days when you’re feeling down, essential oils can brighten your mood. Try bergamot, lavender, sweet orange, and clary sage. Nutrition Plus, NutritionPlus.com