10 common misconceptions about the human body

Many people think that humans have only 5 senses, sweat helps to remove toxins, or bright white teeth prove healthy body . However, all are misconceptions.

According to Medical Daily, in fact people use all their brains to complete everyday tasks like walking, breathing, moving, speaking . Even when we sleep, the frontal lobe - with the function of checking Control the advanced thinking process and self-awareness, the body sensory area continues to function.

The eyes are like muscles in the human body, they can feel stressed or tired, but they will not be permanently affected.Therefore, poor light only makes eyes tired quickly, but can then be restored if rested.

Science has proven that hair is a "dead" structure, so it cannot be recovered.Usually, shampoo and conditioner can only soften split ends during a temporary period.If you want to remove them completely, you should cut off the split ends.

Vision, hearing, taste, smell and touch are just five senses that you can feel.The human brain actually controls more senses, such as temperature (feeling of heat, cold), balance (feeling of body's ability to move) or pain, hunger. .

According to Life Hacker, cold, wet weather is not the cause of colds, but rhinovirus.This virus can be everywhere and it is difficult to avoid them.When you come into contact with someone who has a cold, be careful and wash your hands clean, get enough sleep, eat healthy.

Sneezing is the brain's reflex when you feel uncomfortable in your nose, nerves send signals to your brain that make you sneeze.But this does not stop the heart rate, but only changes the speed of the heartbeat.

You often feel your body warm when you drink alcohol, but that's because alcohol causes blood vessels to relax, while blood moves closer to the surface of your skin.That only makes you warm up outside, but reduces the temperature inside your body.

The sweat glands are located in human skin, not connected to any other system or organ in the body.Therefore, they cannot remove toxins from the body.Sweat is made up of water, salt and electrolytes so it is only able to cool the body.

In fact, according to MSN, carrots contain a lot of beta-carotene, a nutrient that helps the body convert into vitamin A, an important vitamin for vision.However, carrots only help retina cells work better, not help improve vision.

According to the Huffington Post, people with slightly darker yellow teeth than others have healthy teeth.The teeth are too white sometimes because you brush your teeth with a hard brush, brush your teeth too hard, wear tooth enamel, and weaken your teeth.