In Ayurveda, "double constitution" refers to a person who has a balanced combination of two of the three doshas, or constitutional types. The three doshas are Kapha, Pitta, and Vata.
Kapha is associated with the elements of earth and water, and is characterized by qualities such as stability, lubrication, and nourishment. People with a predominantly Kapha constitution tend to be solid and sturdy, with a strong immune system and a tendency towards a slower metabolism.
Pitta is associated with the element of fire, and is characterized by qualities such as heat, transformation, and digestion. People with a predominantly Pitta constitution tend to be strong and energetic, with a strong digestive fire and a tendency towards a more medium metabolism.
If you have a "double constitution" of Kapha and Pitta, it means that you have a balanced combination of these two doshas. This may mean that you have some of the characteristics of both Kapha and Pitta, such as a strong immune system and a strong digestive fire. However, it's important to note that every person is unique, and the balance of doshas in each individual can vary. It's best to work with an Ayurvedic practitioner to determine your specific constitutional type and how to maintain balance in your body and mind.