Damp, cold, heat, dry — and the ways they marry.
Damp
Carried by rain, dew, fog, mist, air, wind, food, infection, parasites. Makes mucous, fluid retention, congestion, constriction, stagnation, canker, relaxed tissues, loss of tone. Settles in sinuses, lungs, gut, gallbladder, bladder, vaginal tissue. Kidneys and the heart can also make a body damp.
Cold
Carried by air, wind, water, dew, food, disease, chronic illness, deficiency. Produces mucous, congestion, constriction, lack of flow. Shivering, tiredness, sleepiness. Shallow breathing, a weak irregular pulse, confusion, a slowing heart, vessels that dilate. Relaxed tissues.
Heat
Too much sun, fever, inflammation, infection. Summer heat can thicken the blood. Sweating, dehydration, an elevated pulse, cramps. Excess thyroid, autoimmune fire, chronic illness. Excitation — tremors, twitches. Tends toward dryness and atrophy.
Dry
Low moisture — a cold dry winter or a hot dry summer, blowing wind. Internal heat, dehydration, lack of fluid or oil. Tiredness. Tense, constricted tissues leading to atrophy. Chronic illness, autoimmune disease, stress.