Some info on the Ha breathing mentioned above
Ha Breathing ~ Dr. Len also states in a recording that just the "Ha" breathing can cure depression. Breath in while counting to 10 (1-2-3-4-5-6-7-8-9-10), but just as fast as you normally count, no need to go slow unless you want to. Then hold your breath in for a count of 10. Then let out your breath for a count of 10 (even happily sighing or "haaaa" if you want). Do this 10 times or however long you'd like. It's a beautiful thing! if the number 7 suits you count to 7 and do 7 cycles !