Here's a strange thing that happens every year. The days are getting longer, the garden is finally doing something, there's actual warmth in the afternoon sun, and yet you feel inexplicably flat. Tired in a way that doesn't quite make sense. A bit restless, a bit unmotivated, not quite yourself.
If that sounds familiar, you're not imagining it. The May energy slump is a real and surprisingly common experience, and it has nothing to do with laziness or ingratitude for the improving weather. Your body and mind are simply adjusting to a lot of change, all at once…
Why May is harder than it looks
By mid-May, sunrise in the UK is happening before 5:30am. That's a dramatic shift from the dark mornings of February, and your circadian rhythm (the internal clock that governs when you feel awake, sleepy, alert and hungry) is still catching up. The brain's production of melatonin (the sleep hormone) is highly sensitive to light, and when light arrives earlier and earlier each morning, sleep can become lighter and less restorative, even if you're getting the same hours.
Then there's the calendar. The cluster of bank holidays in late April and early May is wonderful in theory, but the disruption to routine has a cost. Irregular sleep times, later nights, and the psychological jolt of returning to work after a break can leave people feeling more drained than refreshed. Add to this the quiet background hum of pollen season. Even people who don't consider themselves hay fever sufferers can experience mild symptoms with slight congestion, a faint headache, and eyes that feel a little heavy, all accumulating into low-grade fatigue by the end of the day.
Finally, there's something harder to name: the feeling of summer being almost here but not quite. A kind of anticipatory restlessness. The mind is already half out of the door into warm evenings and slower days, while the body is still showing up for a Tuesday morning meeting. That tension is surprisingly draining.
How aromatherapy can help
The reason essential oils can have a genuine effect on energy and mood comes down to anatomy. Our sense of smell is the only sense with a direct pathway to the limbic system, the part of the brain that regulates emotion, memory and arousal. When you inhale an essential oil, the molecules interact with olfactory receptors that send signals almost immediately to the brain regions associated with alertness, calm and emotional tone. This is why a single breath of peppermint can make you feel sharper in seconds, or why lavender can slow a racing mind before bed.
It's worth distinguishing between two kinds of energising support. Some oils are stimulating and raise alertness and sharpen focus. Others work more like adaptogens, helping to restore balance and steady energy rather than giving a short, sharp spike. At this time of year, both have their place.
Oils to reach for in May
- Rosemary (Rosmarinus officinalis ct. camphor) is one of the best-studied oils for mental clarity and alertness. Research has associated it with improved memory and concentration, making it ideal for the mid-morning slump or a sluggish start to the working day. A few drops in a diffuser while you settle into your desk is a simple and effective ritual.
- Bergamot has a bright, citrus-floral quality that lifts mood without overstimulating. It's particularly well-suited to May because of its balancing character - uplifting when you're low, gently calming when you're anxious or restless. Add it to a morning blend and notice how the day starts differently.
- Grapefruit is unabashedly cheerful. Its fresh, zesty scent is almost impossible not to respond to, making it a good choice when motivation is the problem rather than just tiredness. It works beautifully alongside rosemary or peppermint.
- Peppermint is the oil equivalent of opening a window, immediate, bracing and clarifying. A little goes a long way. Use it on an inhaler stick or a tissue rather than a diffuser, where the intensity can become overwhelming in a small space. It's particularly useful for the 3pm dip.
- Scots pine or black spruce are less obvious choices, but worth knowing. Both have a clean, resinous, outdoor quality that connects beautifully to the season, the world coming back to life, the smell of warming earth and new growth. They're grounding and energising at the same time, and they work wonderfully in a blend with citrus oils.
Aromatherapy is a genuinely useful tool in your wellness kit, but it works best as a support rather than a solution. If fatigue is persistent, deep, or accompanied by other symptoms, it's worth a conversation with your GP rather than another diffuser blend. Sleep, hydration, time outside and regular movement are the foundations; aromatherapy helps you build on them.