the world > health and disease > [adjective] > of health: good > conducive to health > of climate (4)
Of weather, soil, climate, etc.: Mild, salubrious, genial, kindly.
In extended use. Cf. kind, adj. 12a. Of the weather or climate: fine, mild, agreeable.
Favourable or conducive to health. Of air, climate, places, etc.
Of things: Not intoxicating.