Feb 12, 2025 · Muscle weakness is when your muscles can’t work with the expected amount of force. It’s a common symptom, and many of the causes are treatable.

Sep 1, 2025 · Muscle weakness occurs when your full effort doesn’t produce a normal contraction. Discover causes like multiple sclerosis, the symptoms of an emergency, and more.

Jul 18, 2024 · Muscle weakness can be a symptom of many chronic conditions and acute infections. It can also be a side effect of certain medications. Find out more about the causes …

Nov 16, 2025 · Muscle weakness can be caused by exercise or getting older, but it can sometimes be a sign of an underlying condition. Learn more about the causes, diagnosis, and …

Dec 10, 2025 · Muscle weakness occurs when your muscles can't contract effectively, reducing strength. It often happens with aging, but it can be caused by health conditions like ALS or …

Jun 11, 2024 · Muscle weakness is commonly due to lack of exercise, ageing, muscle injury or pregnancy. It can also occur with long-term conditions such as diabetes or heart disease. …

Jul 9, 2025 · Muscle weakness is less about feeling “tired” and more about an objective loss of strength—you can’t lift what you normally lift, climb stairs, or open a jar. It can stem from …

Oct 6, 2025 · Muscle weakness refers to a lack of muscle strength, making it difficult to perform tasks that require physical exertion. This condition can be temporary or chronic, and it often …

Muscle weakness can make everyday movements—such as lifting objects, climbing stairs, or rising from a chair—more challenging. It often signals a disruption in how muscles function and …

Dec 13, 2025 · True weakness is the inability to exert normal force, regardless of a person’s energy level. For example, an individual experiencing true weakness may struggle to lift a …