By Anthony Latora
How do we know which herbs are right for someone? Is it simply a matter of identifying a particular plant constituent that addresses a specific condition? While understanding the chemistry of medicinal plants is important, traditional Western herbalism offers another way of understanding the relationship between plants and people: herbal energetics and tissue states.
Herbal energetics is the study of the qualities and actions of plants. Rather than looking at herbs solely through their chemical constituents, we also consider whether a plant is warming or cooling, drying or moistening, relaxing or tonifying. These qualities offer another lens through which we can understand how a plant may interact with the body and where it might be most useful.
Working alongside herbal energetics is the concept of tissue states, a framework for observing patterns within the body. In traditional Western herbalism, six commonly described tissue states are excitation, depression, atrophy, stagnation, tension, and relaxation. Each represents a different pattern of physiological activity, offering clues that may help guide an herbalist toward appropriate plant qualities.
These states are often understood through their energetic associations: heat with excitation, cold with depression, dryness with atrophy, and dampness with stagnation. Tension is associated with wind, while relaxation is associated with dampness. Together, these relationships provide a framework for understanding how the body’s tissues respond to different conditions and influences.
For example, heat and excitation may present as redness, irritation, inflammation, or excessive activity. In Western herbalism, cooling plants such as violet and lemon balm may be considered for their soothing qualities. Cold and depression describe the opposite pattern: sluggishness, cold extremities, or diminished digestive activity. Warming herbs like ginger and rosemary are used to encourage movement and circulation.
Dryness and atrophy describe tissues that have become depleted of moisture, nourishment, or tone. Demulcent plants such as marshmallow root, rich in soothing mucilage, support dry and irritated tissues. Dampness and stagnation, on the other hand, describe patterns of excess moisture, congestion, mucus, or sluggish movement. Aromatic herbs like thyme encourage respiratory function and address excessive mucus.
The remaining two tissue states involve tension and relaxation. Wind and tension describe patterns of constriction, cramping, spasms, or nervous restlessness. Relaxing herbs such as chamomile and skullcap support the body’s ability to settle and release tension. Damp relaxation describes tissues that have lost their natural tone or resilience and have become leaky. Astringent plants like agrimony and rose are used to support tissue tone and regulate excessive secretions.
Wind is an especially interesting concept in herbal energetics, often associated with changeability and movement. Much like the natural wind, it moves and shifts freely, adapting to its surroundings. Yet, too much movement or change can leave us feeling unsettled, tense, or depleted. This offers a useful way of understanding the relationship between wind and tension. Movement and change are necessary for life, but without sufficient stability and rest, they can leave us feeling ungrounded. In this sense, wind reminds us of the importance of finding balance between movement and stillness.
These tissue states are not necessarily isolated, and a person may experience several simultaneously. The purpose is not to place someone into a rigid category, but to develop an understanding of their individual presentation.
The roots of this approach reach back to ancient Greek medicine and the humoral tradition, which understood health through the balance of four bodily humors and their associated qualities of hot, cold, moist, and dry. Although modern medicine has moved beyond the humoral model, these principles continue to influence Western herbalism.
The modern understanding of herbal energetics and tissue states owes much to the work of nineteenth-century physiomedicalists, including John M. Scudder and J. M. Thurston. In contemporary Western herbalism, Matthew Wood has been instrumental in reviving and expanding this tradition. Through his clinical practice, teaching, and writings, Wood has brought renewed attention to the six tissue states, helping herbalists understand how to assess the individual rather than simply treating a collection of symptoms.
Taste offers another useful way of understanding a plant’s character. Bitter herbs are traditionally associated with cooling and digestive stimulation, pungent herbs with warming and movement, sweet herbs with nourishment and moistening, and astringent herbs with drying and tonifying qualities. These associations are not absolute, but they provide another layer of understanding when studying medicinal plants.
Ultimately, this is where herbal energetics and tissue states become valuable. Two people may experience the same complaint but have very different underlying patterns. One person might experience digestive discomfort accompanied by burning and irritation, while another experiences sluggish digestion and tension. Although their symptoms may appear similar, the traditional herbal approach would consider their individual presentations and potentially arrive at very different remedies.
Of course, selecting an appropriate remedy involves more than energetics alone. An herbalist must also consider a person’s constitution, medical history, medications, allergies, the plant’s constituents, and its safety.
One of the most rewarding aspects of studying herbal medicine is learning to look beyond the symptom and understand the relationship between the plant and the person. As we spend time observing plants, tasting them, studying their constituents, and learning their traditional uses, we begin to develop a deeper appreciation for their individual qualities.
The art of herbalism lies not simply in knowing what a plant contains, but in understanding when, why, and for whom it may be appropriate. Through the study of herbal energetics and tissue states, we begin to cultivate a language for understanding these relationships, allowing us to approach the practice of herbalism with greater discernment, curiosity, and respect for the living world.
