Serotonin should be mentioned briefly here too as this is the chemical that affects mood, sleep patterns and appetite.
Whatever the reason, be it because they are high energy therefore they require more than the 'normal' amount of endorphin production, or whether individuals that produce lower levels of endorphins are by nature more 'hyperactive' as a result, the fact remains that there is a link between the two.
It could equally be the case that they produce a 'normal' amount of endorphins but due to their high energy (and as a consequence an often frustrating and boring life) this is not enough when looked at in the context of their need for stimulating activity. There is speculation and some biochemical evidence to suggest that genuinely high energy or high anxiety dogs have a lower than normal level of these opiate compounds, or that they do not produce them as efficiently as others that present as more low energy. They are produced in the brain and decrease anxiety and stress whilst promoting well-being and relaxation. WHAT ARE ENDORPHINS AND WHY ARE THEY RELEVANT TO HIGHLY ACTIVE DOGS?Įndorphins are opiate-like chemicals that produce feelings of euphoria and calmness in response to external stimuli like excitement, pain, and exertion.