The heart is a red shape. 
The heart symbol is a red shape. 

The heart symbol is a famous shape. It has two curves. These curves meet at a point. It does not look like a real heart from our bodies. Instead, it is a sign for feelings. Most people use it to show love or affection. 
This shape has a long history. In ancient Japan, people called it Inome. This means "eye of a wild boar." They used it to ward off evil spirits. They put it on swords and temples. 
In Europe, the shape changed over time. Long ago, it looked like leaves from plants. In the Middle Ages, it became a symbol for love. By the 1500s, it was very popular. You can even find it on playing cards.
Today, we see hearts everywhere. They are on Valentine's Day cards. They are in video games to show health. Some food boxes use a heart to show a meal is healthy.
The heart symbol is a very famous shape. It has two curves that meet at a point. This shape is not a real heart from our bodies. Instead, it is an ideograph, which is a symbol that stands for an idea. Most people use it to show deep feelings like affection or love. It is often colored red to show romantic love. Sometimes, people add other details to it. A heart with an arrow might show lovesickness. A heart broken into pieces shows heartbreak. 
This shape has many different uses in history. In ancient Japan, people called the symbol Inome. This name means the eye of a wild boar. People believed it could ward off evil spirits. They used this pattern to decorate Shinto shrines and Buddhist temples. They also put it on castles and weapons. The oldest examples are found on sword guards called tsuba. These were made between the sixth and seventh centuries. 
In Europe, the symbol changed a lot over time. Before the 14th century, it did not mean a human heart. Instead, it often looked like plant leaves. People used shapes like fig leaves or ivy leaves. In the 1300s, the shape began to look more like the heart we know. It started to have a dent at the bottom. By the 1500s, the symbol became very popular in Europe. You can even see heart shapes on playing cards from the late 15th century.
Artists have used the heart in many ways. A painter named Giotto made a famous painting in 1305. In it, a figure named Charity hands her heart to Jesus Christ. During this time, the heart was often drawn pointing upward. It looked more like a pine cone than a modern heart. Later, the shape changed so the point faced downward. This is the way we usually see it today.
We see the heart symbol everywhere in our modern world. It is a common sight on Valentine's Day cards and candy boxes. In video games, a heart often shows a player's health or lives. For example, The Legend of Zelda uses heart shapes for a life bar. Some foods use a heart symbol to show they are healthy. The American Heart Association uses a heart with a check mark. This helps people find food that is low in cholesterol.
The heart symbol is a widely recognized ideograph. An ideograph is a symbol that represents a specific idea or concept. While it is not an anatomically correct representation of a biological heart, it serves as a powerful metaphor. It most commonly denotes the center of human emotion, such as affection and romantic love. The symbol is typically characterized by two symmetrical curves that meet at a point at one end and a cusp at the other. In modern culture, it is frequently colored red to emphasize these feelings. 
Beyond simple affection, the symbol can be modified to convey complex emotional states. A "wounded heart" is often depicted as a heart pierced by an arrow, which indicates lovesickness. Another variation is the "broken heart," which is shown in two or more pieces to represent heartbreak. These visual additions allow the symbol to communicate specific, nuanced human experiences. By changing the physical appearance of the shape, people can express a wide range of sentimental meanings.
Ancient history shows that similar shapes existed long before the modern heart symbol. In the Indus Valley civilization, people used Peepal leaves in artistic depictions, and a heart-shaped pendant from this era is held in the National Museum of India. In the 5th or 6th century BC, the Roman world used a similar shape to represent the seeds of the silphium plant. This plant was possibly used as an aphrodisiac or a contraceptive. Silver coins from Cyrene from that same period also feature this design, often alongside the silphium plant itself. 
In Japan, the symbol has a very different traditional meaning. It is called Inome, which translates to "the eye of a wild boar." Rather than representing romance, it is used to ward off evil spirits. This pattern has been used to decorate Shinto shrines, Buddhist temples, castles, and weapons. The oldest examples are found on tsuba, which are sword guards. Specifically, the toran gata tsuba style from the sixth or seventh century featured hollowed-out heart shapes. 
The transition to the modern heart metaphor occurred in Europe during the Middle Ages. Before the 14th century, the geometric shape did not represent a human heart. Instead, it usually depicted foliage, such as fig leaves in antiquity or ivy and water-lily leaves in medieval heraldry.
Significant artistic shifts helped define the modern shape. In 1305, the painter Giotto depicted an allegory of Charity handing her heart to Jesus Christ. This painting influenced many later artists, including Taddeo Gaddi and Andrea Pisano. During this era, the heart was often shown with the point facing upward. However, in the late 14th century, the convention shifted so the point faced downward. The "scalloped" look, where the sides are concave toward the base, also emerged in the early 14th century. By the 15th century, the symbol became a popular icon in Europe, and by the late 15th century, it appeared on playing cards.
In the modern era, the heart symbol has expanded into many different fields. It is a staple of popular culture, appearing on Valentine's Day cards and candy boxes. In 1977, the designer Mary Wells Lawrence used the symbol as a logograph for the verb "to love" in the "I ♥ NY" campaign. This usage eventually spread to express enthusiasm for many different things. In the world of video games, hearts often represent a player's health or lives, a convention seen in games like The Legend of Zelda.
The symbol also plays a role in health and nutrition. Since the 1990s, it has been used as an ideogram to indicate heart-healthy food. In 1995, the American Heart Association introduced a copyrighted "heart-check" symbol. This symbol features a heart with a bold check mark to help consumers identify products low in cholesterol and saturated fat. From ancient religious decorations to modern food packaging, the heart symbol continues to be a versatile tool for human communication.
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