Experts have long touted aromatherapy as a healthy way to replenish the mind and spirit. Supporters argue that because odors travel through the nose to the limbic system, the emotion-controlling part of the brain, what we smell has a profound effect on how we feel. There are various scents that can help alleviate or prevent SAD symptoms. Since certain smells can be very nostalgic, try using essential oils or candles that are reminiscent of spring and summer days. For example, lemon and honeysuckle scents always put me in a good mood because they remind me of childhood summers, even in the dead of winter. Those feeling anxious or stressed might be soothed by the smell of lavender. To increase alertness and encourage happier moods, try citrus, jasmine, or bergamot.