It’s one of the most commonly occurring medical conditions – chronic venous in-sufficiency (CVI). Millions of people from around the world suffer from weak veins that require treatment, with twice as ...

Chronic venous insufficiency - or CVI - is a very common medical condition in which veins in the legs cannot pump enough oxygen-poor blood back to the heart. It is caused by faulty valves within the ...

The course of blood flow in the heart is a one-way street, with the heart valves ensuring that the blood flows in the right direction. Photos: Filepic The heart is a one-way street. A working one, ...

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