Muscle weakness with ageing is almost inevitable, generally beginning to manifest beyond the age of 40, and is usually unstoppable. It can lead to reduced mobility, increased risk of falling, injury, and even death. But “you’re just getting old” is not a sufficient diagnosis. Specific causes of neuromuscular symptoms may explain progressive muscle weakness, and should be investigated for potential treatment. Muscle Ageing, Inclusion-Body Myositis and Myopathies explores the clinical and...