(HealthDay News) -- Blood clots most often occur in people who don't move around enough and among people who have had recent surgery or injury. A clot can travel to the heart or brain, leading to a heart attack or stroke.

The U.S. Department of Health and Human Services suggests how to help prevent a blood clot:

• Wear clothing and socks that fit loosely.
• Occasionally lift your legs to about six inches above your heart.
• If prescribed by your doctor, wear compression stockings.
• Follow your doctor's recommendations for exercise and take all medications as prescribed.
• Avoid sitting or standing in the same position for longer than one hour.
• Limit your salt intake.
• Avoid crossing or bumping your legs.
• Don't put pillows beneath your knees.
• Elevate the end of your bed about four to six inches.