Could be initial symptom of venous disorder
A feeling of tired legs is due to temporary deficiency in venous return, and not due to major organic lesions. The stagnation of blood mass in the legs is fostered by some situations: prolonged periods in a standing or seating position, intense heat, etc. The insufficient supply of oxygen to the tissue, and in particular the muscles, causes the feeling of heaviness and discomfort in the legs.
Medical tip
Basic therapy against this medical condition is medical compression stockings like
Medical compression stockings are prescribed by the doctor if required, and the patients are measured for the correct fit by specialist medical retailers (e.g. surgical appliance dealers): the user’s leg circumferences are measured in several places so that the compression stocking matches his anatomy exactly.