He was very near the end of his mental resources.
I am coming to the end of my mental resources.
Limited mental resources must be shared when doing two tasks at once.
Religion seemed to use up physical and mental resources without an obvious benefit for survival.
That's got to be a drain on your mental resources, I would think.
The issues you have to deal with on a daily basis can consume all of your mental and physical resources both day and night.
He's forced back on his own spiritual and mental resources, which he eventually exhausts.
Overall this looks to be a group with the physical and mental resources needed to play at the top level in New Zealand.
We are making use of only a small part of our physical and mental resources.
He looked at her pretty face and it vivified his mental resources.