There are three basic fundamental biological humours described by Dr pahchan. Health products & clinic- The Vata, Pitta and Kapha also called the tri-energies. There are three basic fundamental biological humours described by Dr. Pahchan Health Clinic- The Vata, Pitta and Kapha also called the tri-energies. There are three basic fundamental biological humours described by Dr. Pahchan Health Clinic.