Tag: Strength imbalance

According to a 2025 review in *Scientific Reports*, the dominant limb is, on average, about 11.6% stronger than the non-dominant limb, confirming a long-held suspicion. So, is your dominant arm usually stronger? The answer, for most people, is a resounding yes, though the reasons are more complex than simple day-to-day use.

According to research, most people have some degree of natural body asymmetry, and a slight difference in hand size or strength is very common. The question of “Why is my left hand thinner than my right hand?” often points to your body's normal functional differences, but in some cases, it can signal an underlying health issue.

Research has found that for right-handed individuals, the dominant hand is approximately 10% stronger in grip strength than the non-dominant hand. This difference reveals fascinating insights into why one hand is usually stronger and what factors contribute to this physiological asymmetry in the human body.