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.
1 Not drinking enough water can also cause your body to become weak and lowers your metabolism. 2  If you experience leg cramps you will feel the pain of aching legs for at least one or two days.  Standing or sitting with the wrong posture can lead to additional strain on your lower back and limbs causing achy legs.