Many reviews have been published recently on the response of physical properties of soils to sodicity and salinity. It was demonstrated that soil inherent properties, such as soil texture, clay mineralogy, PH, and sesquioxides, organic matter (OM) and lime content  affect the response of soils to sodic conditions. In contrast, the effects of temporal changes in extrinsic physical conditions, e.g., wetting rate (WR), antecedent  moisture content (AMC) and ageing (time since wetting) on the response of soils to sodic conditions have been only partially considered. Therefore, the objective of this review is to demonstrate the effect of inherent soil properties and time dependent physical conditions on the susceptibility of clays and soils to sodic conditions. It was concluded that the methods used to obtain data in laboratory do not closely reflect the conditions that usually  occur in the field. The laboratory experiments used disturbed and dry samples, fast wetting and no aging conditions  that enhanced aggregates slaking and clay dispersion. In contrast, under field conditions, soil WR is slow, and the AMC and soil aging are relatively high. Therefore, in the field, soil aggregation is maintained and the stable aggregates are less susceptible to sodicity.