Nowadays, a standard respiratory rate for an adult lies between 12 and 20 breaths per minute. When you breathe faster than that, this could be either caused by a respiratory condition (asthma) or be an indicator of stress. As you remember, in our body everything is connected with a feedback loop, while heart rate and stress influence how we breathe, our breath can also influence what is going on inside our bodies, and hence we can consciously impact this through the breath control.
With an increase of daily stress and how it impacts us, our breathing rate becomes faster more often than it should. Being in alarm stage of the stress response leads to chronic stress, which damages all physiological processes in the body, exposing us to illnesses with the lowered immune system and causing mental disturbances, such as anxiety, panic attacks, and depression.