Why is a wedding ring worn on the ring finger? — And why the 'vein of love' is not real

Have you ever noticed that married people almost all wear the ring on the same finger — the one next to the little finger on the left hand? Grown-ups always give the same reason: a vein runs from that finger straight to the heart. It sounds lovely. Unfortunately, that vein does not exist.

Scientists later mapped the blood vessels in the body. Blood leaves the heart through arteries, travels everywhere, and comes back through veins. The veins from every finger join the same network and go home together. No finger has a private line.

So why does everyone still say it? Because the story is a thousand years older than the knowledge. In the 4th century, a Roman writer named Macrobius mentioned it — but what he described was a nerve, not a vein, and he said the idea came from Egypt. In the 7th century, a scholar called Isidore of Seville copied it into a church handbook. Nobody knew how blood circulated back then. It took until the 17th century, when the doctor William Harvey worked it out. So the order is backwards: first people wore the ring that way, then someone invented a reason.

What actually wrote "fourth finger of the left hand" into the rules was the English Book of Common Prayer in 1662. Why that finger? The Wikipedia writers are refreshingly honest: nobody knows for certain.

There is a funny detail too. In the Middle Ages this finger was nicknamed the "leech finger", because that is where blood-letting was done. The same finger was called love on one side and leech on the other.

Try this: hold your hand high above your head for thirty seconds, then look at the veins on the back of it. They flatten. Put your hand down and they swell again. Blood is always travelling upward, pushed by pressure, not by some secret pipe. You can also count the rings around you — in Spain, Eastern Europe and India, many people wear theirs on the right hand.