5 Surprising Causes of Weak Legs in Seniors—and What May Help
Weak legs aren’t simply an unavoidable part of getting older. They can have many causes, some of which are treatable.
- Too little activity and muscle loss
Spending long periods sitting or being inactive can reduce muscle strength. What may help: a gradual strength and balance program, ideally designed with a physiotherapist or clinician. - Vitamin B12 deficiency
Low B12 can cause muscle weakness, numbness, tingling, and balance problems, and it becomes more common with age.
What may help: ask about a blood test if symptoms suggest deficiency. Treatment may involve B12 tablets or injections depending on the cause. - Nerve problems
Diabetes, certain vitamin deficiencies, alcohol-related nerve damage, and some medicines can cause peripheral neuropathy, leading to weakness or difficulty walking.
What may help: treating the underlying cause and using physiotherapy when appropriate. - Poor circulation in the legs
Peripheral artery disease can cause aching or pain in the legs during walking and may be mistaken for normal aging.
What may help: medical evaluation and treatment of cardiovascular risk factors rather than simply pushing through the pain. - Anemia or other medical conditions
Anemia can cause tiredness, low energy, and weakness. B12 or folate deficiency is one possible cause.
What may help: identifying the cause with medical evaluation and blood tests rather than taking iron or vitamins blindly
