Your Ear Holds the Key: The Science Behind OhmBody’s Period Wellness Technology

If you’ve ever wished for a way to feel calmer and more comfortable during your period, you’re not alone. Monthly cycles bring a wave of physical and emotional shifts that can leave your body genuinely off-balance. That’s exactly the experience OhmBody was designed to support. 

OhmBody uses a technology called transcutaneous auricular neurostimulation, or tAN™. By sending gentle electrical pulses to specific points on your ear, tAN engages your autonomic nervous system to help support your body’s natural balance during menstruation. Here’s the science behind how it works. 

What’s Happening in Your Nervous System During Your Period 

Your menstrual cycle is driven by hormones — and hormones and your nervous system are deeply connected. As levels shift throughout your cycle, your autonomic nervous system shifts with them. 

The autonomic nervous system works behind the scenes, regulating heart rate, breathing, digestion, stress responses, and emotional tone. Think of it like a teeter-totter. On one side is sympathetic drive — better known as fight-or-flight. On the other side is parasympathetic drive — rest-and-digest, the calm, restorative state. 

During menstruation, many of the physical and emotional experiences you feel — cramping, tension, fatigue, mood changes, GI discomfort — can push that teeter-totter toward the sympathetic side. Your heart may beat faster, breathing can feel a little harder, and anxiety or irritability can creep in. Your body is working hard, and your nervous system is reacting accordingly. 

OhmBody’s goal is to help nudge that teeter-totter back toward balance — supporting a calmer, more parasympathetic state so your body can feel more at ease. 

Your Ear Is a Gateway to Your Nervous System 

Your ear is an ideal access point for two major nerve networks: the vagus nerve and the trigeminal nerve. Did you know that auricular acupuncture has been activating these nerves for over 2500 years? 

The vagus nerve — from the Latin vagus, meaning wanderer — travels from your brainstem through your chest and abdomen, connecting to your heart, lungs, spleen, and gut. It’s the primary driver of the parasympathetic nervous system. When the vagus nerve is active, it slows your heart rate, eases breathing, and promotes calm. The trigeminal nerve shares key integration centers with the vagus nerve in the brainstem, and stimulating both together creates a synergistic effect on how the body self-regulates. 

Both nerves have branches near the surface of the ear, making it possible to engage them without surgery, needles, or medication. OhmBody’s device targets both simultaneously — one electrode behind the ear to engage a branch of the vagus nerve, one electrode just in front of the ear canal to target a branch of the trigeminal nerve — activating calming pathways that help restore balance. 

Supporting Your Body’s Natural Flow Regulation 

The vagus nerve can communicate to the spleen, which houses roughly 20–30% of the body’s platelets — the blood cells responsible for clotting. When vagal pathways are activated, a signal travels from the ear to the brain and back down to the spleen. This signal can “prime” platelets making them more ready to respond efficiently when the body needs them.  (Czura, et al., 2025; Bravo-Iñiguez et al., 2023)) 

Researchers call this the “neural tourniquet” pathway — the body’s own nervous system working to support natural blood management. By activating this pathway through the ear, tAN helps support the body’s natural platelet response during menstruation. Research also suggests this pathway functions independently, supporting the body’s natural processes whether or not someone is also using hormonal support. (Czura, et al., 2025) 

Easing Physical Discomfort 

Menstrual discomfort often stems from strong uterine contractions that temporarily reduce blood flow to surrounding tissue — a process called ischemia. When vagal pathways are engaged, the parasympathetic response promotes vasodilation, or widening of blood vessels, including those in the pelvic region. Better circulation can mean less tissue tension and reduced discomfort. 

Because the uterus itself has vagal nerve connections, supporting vagal tone during menstruation may help ease the muscle tension and discomfort that come with it — creating a more comfortable, relaxed experience during your cycle. 

Supporting Mood and Emotional Wellness 

Periods affect more than your body. Fatigue, irritability, and emotional heaviness are a real part of the menstrual experience — and the nervous system is a key player. Activating vagal pathways triggers the release of natural endorphins and helps shift the body’s immune signaling toward a calmer, less inflammatory state. Because inflammation and autonomic imbalance are linked to mood disturbances, supporting parasympathetic tone may help you feel more emotionally grounded during your period. 

Users have reported improvements in energy, emotional well-being, and social engagement while using the device — spending less time sidelined and more time living their lives. 

A New Kind of Period Wellness 

OhmBody works with your body’s own nervous system — not against it. No hormones, no pharmaceuticals, no needles. By engaging the vagus and trigeminal nerves together, it helps shift your autonomic state from sympathetic overdrive toward the calm your body is designed to find. 

Because life doesn’t stop when you start 

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Sources  

Czura, C. J., Weyand, A. C., Baldwin, M. K., Recht, M., McWade, M. A., Covalin, A., & Khodaparast, N. (2025). Transcutaneous auricular neurostimulation to reduce heavy menstrual bleeding in women with and without von Willebrand disease. Frontiers in Medicine, 12, 1664433. 
 
Bravo-Iñiguez, C. E., Fritz, J. R., Shukla, S., Sarangi, S., Thompson, D. A., Amin, S. G., ... & Huston, J. M. (2023). Vagus nerve stimulation primes platelets and reduces bleeding in hemophilia A male mice. Nature communications, 14(1), 3122. 

OhmBody is a wellness device designed to support comfort and overall well-being during menstruation, including areas like mood, sleep, focus, energy, and digestion. It’s not a medical treatment. Always check in with a qualified healthcare provider about symptoms, diagnoses, or care decisions.