In the vast majority of practical contexts, an "overload" is considered detrimental because it signifies that a system, machine, or human being has been pushed past its safe operational limits. Electrical overloads blow fuses; cognitive overloads cause severe mistakes and mental burnout. However, in specific controlled training paradigms—such as athletic strength conditioning where "progressive overload" is utilized—calculated, temporary physical stress forces muscle adaptation, growth, and increased endurance over time.
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