Unilateral hand clenching activates the frontal lobe in the opposite hemisphere, correlating with increased awareness of cognitive processes. This supports using hand clenching as a test for cerebral hemisphere specializations, aligning with the Hemispheric Encoding/Retrieval Asymmetry (HERA) paradigm. In HERA, left prefrontal areas encode episodic memories, and right prefrontal regions handle retrieval. Objective: We looked into this idea by analyzing how Unilateral Hand Clenching would affect short-term memory by using verbal and non-verbal materials for stimulation of visual and auditory routes of memorization. Method: To record the results of memory recall tests, 200 healthy participants between the ages of 18 and 24 were separated into control and different clenching condition groups. Clenching groups were given a 5-cm rubber ball to clench in order to observe how memory recall tests were altered by clenching in right handed people. Result: In all the visual and auditory recall subtests, right encoding, left t recall [R/L] clenching condition group showed superior recall results compared to other clenching and non-clenching conditions. Conclusion: Our outcomes validated the HERA model, furthermore disregarded hemispheric lateralization specific to material type used. We infer that hand clenching activates the auditory and visual circuits of short-term memory for spoken and non-verbal information. Furthermore, the HERA brain asymmetry paradigm is consistent with both strategies.