I think the question probably is – “Are you always mentally tired or not?” I used to be always mentally tired probably for almost twenty years up until five years ago. And I realise that it was mental exhaustion only now after learning to rest my mind and going through an unbelievable life transformation as a result of that.
When we are professionally engaged with our work, our mind is busy with mental activity which includes planning, working, calculating, computing, watching something (videos) listening to something (such as podcasts), reading, studying, focusing, concentrating, paying attention, etc.
When we relax from doing any of the above work, we take rest by keeping our mind busy with other mental activity. These include the monologues in our mind with ourselves, the dialogues we carry out mentally with an imaginary person, the voices of others in our mind telling us what not to do, memories of past events, worries about the future, fantasising, imagining, dreaming, etc. We are habituated to this and so it seems to be happening effortlessly and automatically, although we are doing it. We don’t know how to stop it.
This leads to mental tiredness and eventually to perennial mental exhaustion. Sleep doesn’t seem to rest our mind completely probably because we continue our mental activity in the form of restless dreams. In my opinion, based on my personal life experience of completely healing myself and several others from supposedly incurable illness, mental exhaustion is the root cause for all the chronic lifestyle disease afflicting humanity in modern times.
I have written extensively about how to find out if we are mentally tired and how to completely rest our mind to allow our bodies to heal holistically. You can find all these information and free tools such as videos for physical movements and audios for guided meditation in my website to help release the mental restlessness and enjoy wholesome rest. This will help you experience active, energetic life all the time instead of feeling tired all the time.https://awarenessjourney.org/