You can read more about Ayurveda here, and more take the Dosha Test here.
Kapha is made of two elements - earth and water. Because of this, kapha is solid, stable, strong, dense, moist, heavy, cold, slow, and smooth. Kapha people are typically very kind, compassionate, and dreamy. One famous example of a typical Kapha person is Oprah.
Kapha Imbalances can manifest as obesity, lethargy, slow metabolism and appetite, recurring colds and excess mucus, water retention, a desire to sit and do nothing, sweet or salt cravings, and foggy and clouded emotions, lethargy, trouble waking up, having difficulty letting go, and feeling possessive or greedy.
Herbs and diet to decrease Kapha: Cinnamon, cayenne, cardamom, black pepper, spicy foods, avoid moist foods like bananas, avoid sweet fruits, avoid nuts, small meal portions, fasting (when appropriate), little salt, little sugar, and little fat.
Crystals to decrease Kapha: Carnelian, petrified wood, and red jasper.
Lifestyle to decrease Kapha: Moderate to heavy exercise, waking early, remaining active throughout the day, regular eating times, saunas, stimulating activities, and staying warm and dry.
Herbs and diet to increase Kapha: Eat plenty of healthy fats, drink plenty of water, fruits, heavy foods, liquorice root, ginseng, and astragalus root.
Crystals to increase Kapha: Hematite, magnetic lodestone, obsidian, and black onyx.
Lifestyle to increase Kapha: Grounding, taking deep breaths throughout the day, get plenty of rest, and light exercise only.