A left side stroke can affect movement on the right side of the body, because each hemisphere controls the opposite side.
Stroke - Physiopedia
Left Side Stroke: Effects on the Brain, Symptoms, Treatment, Recovery
Lacunar Stroke - Harvard Health
Effects of Stroke - Milka Clarke Stroke Brain Trauma Foundation
Thalamic Stroke: Effects, Treatment, and Recovery Process
7 Solid Indicators You Are Recovering Well from a Stroke
Primary and Secondary Prevention of Ischemic Stroke and Cerebral Hemorrhage: JACC Focus Seminar - ScienceDirect
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Canadian Stroke Best Practices
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Left Side Stroke: Secondary Effects, Treatment, & Recovery
Left Hemispheric Stroke - What You Need to Know