If you have lost your temper, what is it you have lost?
Emotions are the biochemical reactions experienced by your body in response to stimuli.
In order to re-gain your temper, you need to let these bodily chemicals settle.
The main thing to do is to stop. Do not perpetuate your loss of temper.
Negative emotions have a harmful effect upon the body and can lead to long-term physiological and psychological damage.