👉 Understrength is a condition that occurs when a person's muscles are not strong enough to perform their daily activities, such as walking or lifting heavy objects. It can be caused by various factors such as genetics, age, injury, or illness. Understrength may also affect the strength of other body systems, making it difficult for a person to move around freely and engage in physical activity. Understrength can have serious consequences, including difficulty getting up from a sitting or lying position, difficulty walking