Ive just started trying this out..
1.Breathing from your abdomen, inhale through your nose slowly to a count of five (count slowly "one...two....three...four...five as you inhale)
2. Pause and hold your breath to a count of five.
3. Exhale slowly, through your nose or mouth, to a count of five (or more if it takes you longer). Be sure to exhale fully.
4. When you've exhaled completely, take two breaths in your normal rhythm, then repeat steps 1 through 3 in the cycle above.
Hope this is helpful ..=o)