So if you don't eat according to your dosha, (or personality trait), or the manner in which your body reacts to a particular environment, Ayurveda can identify them. When vata (air) is out of balance, for instance, it may lead to dry skin, joint pain, constipation, insomnia, fear, anxiety and insecurity. An aggravated kapha (cough) can produce a cold, congestion, a cough, poor appetite, water retention, greed and possessiveness.