is a technique used with persons with panic disorder that aims at restoring a normal level of carbon dioxide in the blood by having clients .

Breathing retraining is a technique used with persons with panic disorder that aims at restoring a normal level of carbon dioxide in the blood by having clients inhale slowly and profoundly from the abdomen, maintaining a strategic distance from the shallow, quick breathing

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.