Happy New Year!!! Here's a Free Basic lesson on proper breathing
Rule number 1- Don't hold your breath during movement.
Rule number 2- Continually breathe throughout all movements.
Rule number 3- Breathe in a relaxed manor in through the nose and exhale through the mouth, without puffing your cheeks. Tongue on the roof of the mouth optional.
Rule number 4- Learn how to stretch the inhale and exhale in long slow breaths with more than one movement.
ADVANCED:
*Learn the difference between momentary breath compression [good] and holding your breath [bad- unless of course you're under water]
*Learn the difference between hyperventilation during fearful states with a rapid heart beat- involuntary [bad] and burst breathing- purposeful [good] Example- you have to walk up 6 flights of stairs. When you've reached the 6th floor you find you are out of breath. Why? out of shape? Tired? Perhaps. More than likely you didn't build up a reserve with "burst breathing" Try this at home: begin walking up the staircase- after the first or second flight start quick short inhales and short exhales- in the nose and out through the mouth. This will preload your lungs with oxygen. By the time you ascend to the 6th floor you are breathing normal and will not be tired or out of breath.
*Most people will throw a punch during an exhale. However you also need to be unrestricted with your breathing and be able to punch during an inhale as well.
*Certain movements are breath specific: reaching for something high- you will naturally ALWAYS inhale. Falling to the ground should always be during an exhale in a relaxed state. Movements of extreme dexterity, i.e. serving tea or pulling the trigger of a gun- should be performed during a long slow inhale. Taking punches to the body- impact during the exhale INTO THAT SPECIFIC area of IMPACT.
I hope this gives you a good start. I personally believe proper/natural breathing is not internal/external specific
Buy the best and cry once!