How Does Citrus Scent Make You Feel?

Citrus scents come from essential oils derived from the rinds of citrus fruits like oranges, lemons, limes, and grapefruits. When inhaled, these fresh, bright scents can have uplifting effects on mood, focus, anxiety, and creativity. The unique scent profile of citrus oils is attributed to a class of aromatic compounds called terpenes. Research shows citrus scents may reduce stress, boost immunity, enhance concentration, and contribute to an overall sense of wellbeing. This article explores the science behind how citrus scents affect the mind and body, including both benefits and potential drawbacks.

Scent and Memory

Scents have a strong connection to memories and emotions due to the close proximity of the olfactory bulb to the amygdala and hippocampus in the brain, which are responsible for memory and emotion (https://www.bu.edu/articles/2020/its-true-scent-really-does-have-power-over-memory/). When we smell a particular scent, it triggers these parts of the brain, evoking memories and feelings associated with that smell. For example, the scent of fresh cut grass may remind you of summer days playing outside as a child.

Studies show that out of all the senses, smell is most closely linked to memory. Scents can bring back memories that have laid dormant for decades. According to scientists, this is due to the way smell signals bypass the thalamus and head straight to the limbic system, where emotions and memories are processed (https://medium.com/@adaywithflowers/memories-and-scent-the-timeless-connection-09b7115be152). This allows scent memories to be some of the most poignant and evocative for many people.

Uplifting Effects

The refreshing and energizing scent of citrus can have powerful uplifting effects on mood. Studies have found that exposure to citrus scents is associated with increased feelings of energy, alertness, and cheerfulness.¹ One study showed that smelling lemon oil enhanced positive emotions compared to smelling water.² The citrus scent significantly improved moods and reduced feelings of anxiety and depression.

Research suggests that citrus scents may increase alpha brain waves, which are associated with wakefulness and happiness.³ The terpenes in citrus essential oils, such as limonene, pinene, and bergamotene, are thought to interact with neurotransmitters related to mood regulation. Overall, citrus scents can provide an uplifting effect and boost feelings of energy and cheerfulness.

Reduced Anxiety

Many research studies have demonstrated the anxiety-reducing effects of citrus scents. Exposure to citrus aromas can significantly lower anxiety, with citrus essential oils reducing anxiety more effectively than antidepressant medications in one study (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9774566/). The pleasant smell of citrus has been shown to curb anxiety and panic attacks, promoting feelings of calm and well-being. Citrus scents seem to have special stress-busting powers—research shows that just the scent of a citrus fruit can lower stress levels by 5% or more, making it an uplifting and relaxing aroma (https://www.prevention.com/life/a20448271/scent-of-citrus-shown-to-reduce-stress/). Diffusing citrus oils or having a citrus-scented product nearby can provide an easy way to combat everyday anxious feelings.

Improved Focus

Citrus scents, especially lemon, have been shown to help improve concentration and focus. According to research from The Ohio State University, the scent of lemon raises brain norepinephrine levels, which helps support attention and focus (source). Studies show that diffusing lemon essential oil in the workplace can enhance concentration, reduce errors, and increase motivation in employees (source). The invigorating and uplifting aroma of citrus is believed to stimulate the mind, allowing people to concentrate better on tasks. Other citrus scents like orange and grapefruit can provide similar benefits. Overall, the research demonstrates that citrus scents can give your focus and productivity a boost when you need to zero in on work or studying.

Antidepressant Qualities

Some research indicates that citrus scents may have antidepressant effects. One study published in Sage Journals found that essential oils from Citrus reticulata Blanco had antidepressant-like effects in mice [1]. The researchers suggested that the antidepressant qualities could be due to the presence of limonene, which is a compound found in citrus peels. Another review published in the National Center for Biotechnology Information discussed evidence showing that citrus essential oils like orange and bitter orange can have anxiolytic, antidepressant, anticonvulsant, analgesic, and sedative effects [2]. While more research is still needed, the existing studies indicate that inhaling citrus scents may help provide a mood boost and relieve symptoms of anxiety or depression.

Boosted Immunity

Inhaling citrus scents may help boost the immune system. According to research, exposure to citrus fragrances can restore stress-induced immunosuppression in animals (Komori, 1995¹). The antioxidants in citrus essential oils are believed to support immune function as well (Agarwal, 2022²).

When stressed, our immune systems can become compromised. However, breathing in the bright, uplifting scent of citrus may help counteract that immune suppression. The main antioxidants found in citrus essential oils are limonene and vitamin C. These antioxidants help strengthen immunity by reducing oxidative stress and inflammation.

More research is still needed, but initial studies show promise for citrus fragrances to give our immune defenses a boost when they need it most.

Enhanced Creativity

Citrus scents, especially lemon, orange, and grapefruit, have been linked to boosting creativity. Studies show that citrus scents can help inspire new ideas and innovative thinking. The uplifting and energizing qualities of citrus make people feel more motivated and positive, which facilitates creative problem solving. Citrus scents also promote focus and concentration, allowing people to tune into their imagination without distraction.

One study published in the Journal of Environmental Psychology found that participants exposed to a lemon scent showed more flexible thinking and generated more creative uses for everyday objects compared to those exposed to a chocolate or floral scent. Researchers theorize that because citrus is associated with freshness and clarity, it puts people in an explorative mindset ideal for creativity.

Diffusing citrus essential oils like lemon, bergamot, or orange in your home or office can help stimulate creative flow. You can also use citrus-scented candles, air fresheners, or fragrances to tap into your imagination. Just a whiff of citrus can awaken your mind to new innovative possibilities.

Cautions

While citrus scents can provide many benefits, there are some potential drawbacks to be aware of. Some people may be sensitive or allergic to citrus oils, so overuse could cause headaches, respiratory irritation, skin rashes, or other symptoms in those individuals. It’s best to avoid diffusing citrus oils around babies or young children as well. Additionally, overexposure to any scent can potentially lead to nose fatigue, so use citrus oils in moderation to retain their positive effects.

Conclusion

The refreshing citrus scent from oranges, lemons, grapefruits, and limes can have profound effects on your mood, focus, anxiety levels, and creativity. Through activating the limbic system and triggering powerful memories, citrus aromas are known to uplift people’s spirits and mood. The familiar, vibrant scent provides a sense of nostalgia and wellbeing. Research also shows citrus fragrances can reduce stress, alleviate anxiety, enhance concentration, boost immunity, and increase creativity. However, some people may experience headaches from strong citrus scents. Overall, natural citrus aromas have demonstrated numerous benefits for mental clarity, energy, and mood elevation when used properly and in moderation.