The Yogic view of health is exemplified in Shvetaasvatara Upanishad where it is said that the first signs of entering Yoga are lightness of body, health, thirstlessness of mind, clearness of complexion, a beautiful voice, an agreeable odour and scantiness of excretions
The Hathayoga Pradipika reiterates these qualities “Slimness of body, lustre on face, clarity of voice, brightness of eyes, freedom from disease, control over seminal ejaculation, stimulation of gastric heat and purification of subtle energy channels are marks of success in Hathayoga”.
In the Patanjala Yoga Darshan we find an excellent description of the attributes of bodily perfection (kaya sampat). It is said in Vibhuti Pada that perfection of body includes beauty, gracefulness, strength, and adamantine hardness The effulgence that is characteristic of good health is also mentioned when it is said that deep concentration on samana (energy of digestion) leads to radiant effulgence.