Hormesis

Hormesis is a biological phenomenon where a low dose of a substance or stressor that is harmful at high levels actually has beneficial effects at low levels. In other words, small amounts of things like toxins, radiation, or exercise can stimulate the body's repair and defense mechanisms, leading to improved health, resilience, or longevity. Think of it like a dose of exercise — moderate activity challenges the body and promotes strength, but too much can be harmful. Hormesis suggests that some stressors, when controlled, can help organisms adapt and thrive.