alertness of mind

It required an alertness of mind and spirit, which he thought was best achieved through the enjoyment of wine.

Hers was a square, wide-mouthed face, but she had the same vitality and alertness of mind, the same quick nervous energy.

It stimulates the heart to beat faster and work harder, increases the flow of blood to the muscles, causes an increased alertness of mind, and produces other changes to prepare the body to meet an emergency.

In an intelligent woman, given a reasonable amount of money, present appearances were nothing to go by, and her natural alertness of mind would have enabled her to make the best of any education she had been given.