Sir August De Wynter is the main antagonist in the 1998 film The Avengers.
Quick Answer. Heavy legs are a common symptom of peripheral artery disease, according to SecondsCount. The heavy sensation also points to varicose veins, according to the Mayo Clinic. In those who are heavy exercisers, heavy legs are a symptom of overtraining, adds the American Council on Exercise. Continue Reading.
Heavy legs are also a symptom of a disease called chronic veinous insufficency (CVI) in which the blood vessels in your legs dilate and make your legs swell. As a result, your legs feel heavy and tired.