Basically, the greater the compression level, or compression strength, the tighter the compression stocking. These levels are measured in millimeters of mercury (mmHg). It’s the same scale used to take your blood pressure.
The most beneficial compression socks are “graduated” as opposed to “uniform” in strength. Graduated compression socks are tighter at the ankle than they are at the top. The graduation helps push blood back up toward the heart, aiding in circulation.
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