What happens when one ear is particularly red and hot?

First [explain the ear fever]:

There are three cases of ear fever. One is that after strenuous exercise, you often feel your ears heat up. This is because when people exercise, their hearts beat faster, pumping more blood to the muscles of their limbs.

After the body exercises, the muscles need less blood, but the beating of the heart cannot be slowed down immediately, so more blood rushes to the heart. When a large amount of blood flows through the ears, the blood vessels will dilate and thicken, and the ears will be red, and the ears will feel hot because the blood has a certain temperature. When the heart gradually returns to normal, the blood vessels shrink and narrow, and the blood in the ears decreases, so that the fever stops.

The second is that when the outside temperature is low, the blood vessels shrink after being cold, and the face is pale, at this time, if you walk into the room with a higher temperature, the blood vessels suddenly become thicker when heated, and the ears will also feel hot.

The third is when you are shy, when you have a heated argument with someone, or when you have a difficult time in ......an examYou will also feel hot at the base of your ears. This is because the cerebral cortex is highly excited and nervous, and the command nerves cause ** blood vessels to dilate, the heart beats faster, and blood flow increases.

Let's explain [the omen of ear fever]: Just like the meaning of the left and right eyelid jumps, it is completely superstitious and psychological. Or rather, psychological suggestion.

Because the head, face, and ears are very thin, and they are covered with abundant blood vessels, when a large amount of blood flows through the ears, the blood vessels will dilate and thicken, and the ears will be red, and the ears will be hot because the blood has a certain temperature. Then when the outside temperature is low, the blood vessels shrink after being cold, and the face is pale, at this time, if you walk into the room with a higher temperature, the blood vessels suddenly become thicker when heated, and the ears will also feel hot and red.

Australian psychologist Nicholas Cheburn has pointed out that the fever in one ear is caused by increased blood flow to this side of the brain. "If one side of the brain is more active, it needs more blood, which flows through the carotid artery on the other side and into the brain and inner ear, so measuring ear temperature can get an idea of how the brain is doing on the same side," he says. ”

I remember someone saying it before"If your ears are inexplicably hot, it's someone who thinks of you, and the left ear is hot, and the man is thinking about you, and the right is a woman, but it's not sure if it's a handsome guy or a beautiful woman"~

As an endothermic animal, humans have a well-developed body temperature regulation mechanism. When the ambient temperature changes, the sensitive thermoregulatory center will maintain the relative constant body temperature by controlling the heat production process and the heat dissipation process. Among them, blood circulation plays an important role.

Our two ears protrude from the surface of the body, and the inside and outside are coated with **, but the capillaries under the skin are dense and intertwined, and then form a rich vascular plexus. Such structural characteristics determine that the blood flow in the ear can fluctuate over a wide range, so the heat in the ear will also fluctuate greatly.

For example, after strenuous exercise, the ears will heat up. This is because the muscles that calm down need less blood, and before the heart beats back to its normal rate, the excess blood rushes to other parts, and the blood flowing through the ears brings heat at the same time, and naturally, the ears start to heat up. In addition, in winter, when we return from the cold outdoors to the warm room, the ears become red and hot, which is due to the fact that the blood vessels in the ear that constricted in the low temperature outside dilate indoors due to the rise in temperature, and the blood flow increases, which causes the ears to heat up.

One may have noticed that people also get hot in their ears when they are doing high-intensity mental work such as taking exams or solving difficult problems. It's also about blood circulation. An active brain relies on the carotid artery that connects the brain to the trunk to deliver a constant supply of oxygen and nutrients, and some blood flows to the inner ear before it enters the brain, which increases the temperature of the ear.

Based on this, some scientists believe that measuring the temperature of the ear can also give an idea of how active the brain is.

Red ears and fever are generally a sign of being very excited, such as being told very private words by others, making your face blush and heartbeat.

1. The face and ears are relatively thin and rich in capillaries.

2. The dilatation of microvessels in the face and the increase in blood flow are one of the reasons for the red face and red ears.

2. In addition to dilating blood vessels, the sympathetic nerve also makes the heartbeat faster and the blood faster.

3. Exercise, mental stress, rising temperature, and hot weather will also cause microvascular dilation, and red.

Sometimes it is also related to the individual's constitution.

It's okay, don't think about it, it's the effect of the temperature difference, the sudden heat or cold of the ears will cause this phenomenon, and sometimes nervousness will also cause this phenomenon.