Yogic Breathing. One of the five principles of Yoga is Pranayama. It is a breathing exercise that promotes proper breathing. Proper breathing in the Yogic sense is to bring more oxygen to your brain and blood, while also controlling the Prana (life force energy).
Sungazing. Sungazing is an interesting concept, which involves gazing at the sun to give your body the nourishment it requires.
Sauna. Sauna has some pretty impressive health benefits. It has even been shown that taking cold showers in conjunction with a sauna challenges your immune system and reduces stress hormones.
Oil Pulling. Oil pulling is an Indian folk remedy, where you take an oil, such as sunflower oil, and you swish it in your mouth in the morning before eating anything for about 10-20 minutes. Helps against certain bacteria in your mouth.
Finding Your Passion. Passion is critical to happiness and although I have found no large studies done on the effects of passion on people's health and happiness, but it has been shown that happier people live longer.