New research finds it's in your legs not your chest that some of the most subtle signs of cardiovascular disease can appear.

The condition is called peripheral arterial disease, or PAD.

PAD affects about 10 million people in the United States. In its early stages, there may be no symptoms. For that reason, many people don't even realize they have the disease. Others may be ignoring key warning signs. Doctors say to be alert to any pain in the legs while walking that goes away when you rest. Other symptoms include swelling or numbness in the leg, sores that won't heal, or a change in the color of your leg.

Those at highest risk for PAD include anyone over age 50, people with a family history of cardiovascular disease, and anyone with diabetes, high blood pressure, or high cholesterol. Smokers and people who are overweight or inactive also face a greater risk of PAD.

If diagnosed early, PAD can often be treated with lifestyle changes, such as diet and exercise. Medication, minimally invasive treatments such as angioplasty, or surgery may be necessary for more advanced cases. Left untreated, PAD can cause wounds that won't heal, gangrene, and in severe cases, may lead to amputation.

St. Mary Mercy Hospital is offering free screenings for vascular disease from 8 a.m. to 4 p.m on Saturday, April 21st. To make an appointment, call 734-655-8950.

To learn more about PAD, go to: http://www.mayoclinic.com/health/peripheral-arterial-disease/DS00537 .