Glossary
Acetaldehyde: This toxic substance is a metabolic product of alcohol—in other words, as alcohol is broken down in the liver, acetaldehyde is produced. It’s also found in cigarette smoke.
Acetylcholine: A neurotransmitter of the central and peripheral nervous system.
Adaptogen: An agent that through hormonal response increases the body’s resistance to stress and aids adaptation.
Alcohol dehydrogenase: A liver enzyme that helps convert alcohol into acetaldehyde.
Alterative: An agent that alters your condition by increasing blood flow to tissues, detoxifying and restoring body functions, aiding assimilation, stimulating metabolism, and/or promoting waste and excretion.
Analgesic: An agent that relieves pain.
Anaphrodisiac: An agent that curbs sex drive.
Anesthetic: An agent that deadens sensation.
Anodyne: A strong pain reliever that lessens nerve excitability at nerve centers.
Anticatarrhal: An agent that reduces mucus.
Antiemetic: An agent that counteracts nausea and vomiting.
Antioxidant: An agent that prevents damage from free radicals—unpaired molecules that we’re exposed to through environmental pollutants.
Antispasmodic: An agent that eases muscles, cramps, and psychological stress; pushes out wind; and calms energy.
Antitussive: An agent that relieves coughing.
Aphrodisiac: An agent that increases sexual desire and potency.
Aromatic: An agent that’s fragrant, pungent, and often stimulating to the digestive tract; it can improve the flavor of bitter herbs.
Bitters: An agent that stimulates the flow of digestive, pituitary, liver, and duodenum secretions; clears heat; and aids digestion.
Cardiotonic: An agent that benefits the heart.
Catecholamines: Amines such as epinephrine and norepinephrine that have sympathomimetic activity concerned with nerve transmission, vascular tone, and other metabolic activities.
Chi: Vital energy, life force. Found in all living organisms, chi is invisible, formless, tasteless, and odorless. It’s extracted from food and air, then circulated throughout the body’s meridians.
Cholagogue: An agent that promotes bile flow from the liver and aids the breakdown of fats.
Choleretic: An agent that prevents excessive bile production.
Delirium tremens: Tremors, psychomotor agitation, confusion, sleep disorders—all symptoms associated with withdrawal from alcohol and some drugs.
Demulcent: An agent that soothes irritated tissue of the throat as well as the gastrointestinal system. This effect is usually due to the plant’s content of mucilage, a soothing, slippery substance that lubricates and heals.
Depressant: An agent that lessens nervous system activity.
Diaphoretic: An agent that promotes perspiration by relaxing pores and increasing elimination through the skin.
Diuretic: An agent that increases the secretion and expulsion of urine and excess fluids by promoting activity of the kidneys and bladder.
Dopamine: A crystalline amino acid that is a precursor to norepinephrine and other neurotransmitters.
Dosha: Literally “fault” or “mistake,” a Dosha is one of three forces said in Ayurvedic medicine to bind the elements into the body type of living flesh. There are three Doshas—Vata, Pitta, and Kapha.
Eicosanoids: Superhormones made by every living cell in the human body; prostaglandins are eicosanoids.
Emetic: An agent that induces vomiting.
Endorphins: Brain neurotransmitters that help provide pleasure, pain relief, loving feelings, and psychological calm. They’re the body’s natural opiates.
Enkephalin: A naturally occurring protein that has a morphinelike activity.
Euphoric: An agent that induces a sense of buoyancy and joyfulness.
Expectorant: An agent that promotes the discharge of mucus from respiratory passages.
Free radicals: Unpaired molecules that we’re exposed to through environmental pollutants; they can cause cellular damage.
GABA (gamma-aminobutyric acid): A brain neurotransmitter that aids in calmness and relaxation. The body’s natural sedative, GABA minimizes excitatory messages to the brain.
Hallucinogen: An agent that can induce hallucinations.
Hepato-: A prefix denoting action on the liver.
Hypnotic: An agent that induces deep nerve relaxation and a healing sleep state.
Hypotensive: An agent that lowers high blood pressure.
Kapha: A Dosha corresponding to the mind-body structure. Derived from water and earth, it’s considered the heaviest Dosha. Kapha makes the bones and muscles, cell walls, and basic body structure.
Laxative: An agent that stimulates bowel action.
Mucilaginous: Lubricating, soothing, and healing.
Mucolytic: An agent that breaks up mucus.
Narcotic: An agent that relieves pain and induces sleep. Narcotics sometimes produce visions and offer the potential for abuse.
Nervine: An agent that calms and nourishes the nerves.
Neuron: A nerve cell.
Neurotransmitters: Chemicals that transmit nerve messages across the brain’s synapses.
Norepinephrine: A neurotransmitter that creates drive, energy, and arousal; norepinephrine is considered the body’s natural stimulant.
Nutritive: An agent that supplies lots of the vitamins, minerals, and nutrients that help build and tone the body.
Opiate: A drug that includes or is derived from opium.
Opioid: An “opiate-like” drug—that is, a drug that has the same effect as an opiate, though not necessarily the same chemical structure.
Pitta: A Dosha associated with fire and heat. Pitta helps turn food into energy through digestion, and it metabolizes water and air.
Receptor site: A location in the nervous system where a neurotransmitter or drug binds.
Rejuvenative: An agent that renews body, mind, and spirit; it can slow the aging process, counteract stress, and increase endurance. Rejuvenatives are usually tonics.
Restorative: An agent that helps rebuild a depleted condition and restores normal body functions.
Sedative: An agent that slows body action and strongly quiets nerves.
Serotonin: A brain neurotransmitter that creates emotional stability, confidence, and pain tolerance. Serotonin also aids restful sleep, improves self-esteem, prevents cravings for sugar and alcohol, and helps prevent nighttime depression and worry.
Stimulant: An agent that quickens various body actions, improves energy and circulation, and warms the body. It’s helpful for cramps and coldness.
Synapse: A place where nerve impulses are transmitted from one neuron to another.
Thermogenic: An agent that improves metabolism by warming the body and improving circulation.
Tonic: An agent that promotes general health and well-being, improves any organ system, and builds energy, blood, and chi.
Vata: A Dosha that governs circulation and the digestive process. Derived from both air and space, it can be unpredictable and always in motion—like the wind.
Vulnerary: An agent that encourages wound healing by promoting cellular growth and repair. It’s applied to minor external wounds.