The phrase "vital activity" is grammatically correct and can be used in written English.
It refers to any essential or crucial action or function that is necessary for an organism or system to survive or function properly. Example: "Breathing is a vital activity for all living beings."
530, defending the theory (termed dioenergism) of Christ's dual source of vital activity, human and divine, against his contemporary Severus of Antioch, a Monophysite leader.
The priority now must be to get everybody home from Algeria, in terms of this incident, and I have spoken this morning to our ambassador, who is in Algiers, and this morning will be going again to the south of the country to help co-ordinate that absolutely vital activity.
In transition management, experimenting is a vital activity.
Glutamate (glutamic acid) plays an important role in vital activity of humans and other mammals, especially in the functioning of the central nervous system.
In making this point and at the same time emphasizing the vital activity of the mind, Jinsai enthusiastically endorsed the views of Mencius.
In the Japanese Buddhist tradition, awareness of the fundamental condition of existence is no cause for nihilistic despair, but rather a call to vital activity in the present moment and to gratitude for another moment's being granted to us.
States are already complaining that they have to crimp other vital activities, like education, to meet soaring Medicaid costs.
Budgets for vital activities such as training were raided to shore up finances overall.
The Food and Drug Administration would continue some vital activities, like product recalls and the inspection of imports, but would curtail many other food safety activities.
Freshwater sponge gemmules allow a species to survive unfavourable conditions in a state in which vital activities are almost completely suspended.
Withdrawal, especially in the case of a snail into its shell, is a time-consuming effort, incompatible with such vital activities as searching for food.
