Qi Gong is a technique by itself, but is also often taught with tai chi. There are breathing exercises that will give your internal organs a massage. It can also be both relaxing and energizing. Consider trying it for improved health!
It's always been hard for me to come back from a slip up. With a little bit of yoga breathing, I've learned to let go of the disappointment and not turn to emotional eating. Yoga has always taught me to focus on my breath as a way of "staying in the moment." When I feel some emotional eating creeping up on me, I focus on my breathing, closing my eyes (wherever I am) and listening to the slow in and out of my breath. Besides calming me down, it reminds me to stay focused on the moment!
The best advice I ever got about running was to concentrate on pushing the used air out. Your body will get air in--you don't need to worry about it. Use your abdominal muscles to push out the carbon dioxide and fresh air will come rushing in.
Although I cannot physically do a lot of yoga, I do what I can, and I try to do some at night a few hours before bed. I practice deep breathing, warrior, and just a few others. It helps me to de-stress, and relax, and align my spine.
Yoga Deep breathing is a great way to cut the stress. Practicing breathing in Yoga, and during exercise engraves proper breathing on our beings. Then, when we are faced with stressful situations, we can easily fall into proper breathing to help us deal with the stress.