There are many hair cells on the cochlea of human inner ear that can detect the vibration of sound waves, so that people can hear the sound. These hair cells are supplied with blood by microvessels, which are branches of the basal blood vessels of the brain. If the blood supply is interrupted, hair cells will die, leading to deafness. The diameter of the microvessels in the ear is very small. Long-term consumption of high-fat diet will increase blood lipids, which will not only deposit on the blood vessel wall to make the capillaries thinner, but also easily block the capillaries, resulting in insufficient blood supply. This leads to microcirculation disturbance, complete interruption of blood supply and nutrition of auditory receptors, and sudden deafness. It can also be said that deafness is a precursor of hyperlipidemia, coronary heart disease and arteriosclerosis in the elderly, so the appearance of deafness is six months to one year earlier than other symptoms.
To prevent the premature occurrence of presbycusis, eating less high-fat food should bear the brunt. Old people should eat less fat, egg yolk, sesame and so on. Cooking food should be light, use less animal oil, choose digestible fresh vegetables, lean meat and bean products, eat more fruits at ordinary times and try to quit smoking and drinking. The researchers found that hearing loss is also related to the low levels of β-carotene, vitamin A and zinc in the blood, which can provide nutrition for sensory cells in the inner ear and epithelial cells in the middle ear. Foods rich in beta-carotene include carrots, kale and spinach. Foods rich in zinc include yeast, peanuts, oysters, shellfish and dairy products. In addition, magnesium deficiency can also lead to hearing loss. Noise will reduce magnesium in the ear artery, thus affecting the function of the artery. Therefore, people who are often exposed to noise often supplement foods containing magnesium to improve their hearing. Foods rich in magnesium include cereals, beans, green vegetables, egg yolks, beef, pork, seafood products, peanuts, sesame seeds, bananas and tofu.
Listening and diet
Scientists have found that any factors that can reduce the flow of arterioles in the inner ear, such as high cholesterol, hyperlipidemia and excessive caffeine, will lead to hearing loss. In order to keep hearing, we should eat less high-fat foods, such as fat-rich whole milk, fat, animal oil and so on. But we can eat skim milk to get calcium and vitamin D, thus protecting the ear bones. {aspcms:page}
Hearing researchers in Germany have found that hearing loss is also related to low levels of β-carotene, vitamin A and zinc in blood, which can provide nutrition for sensory cells in the inner ear and epithelial cells in the middle ear. According to an American medical scientist, moderate zinc supplementation can obviously improve hearing. However, high doses of zinc can cause copper deficiency and iron deficiency anemia, so the dosage of zinc should be strictly limited. Magnesium deficiency can also lead to hearing loss. Noise will reduce magnesium in the ear artery, thus affecting the function of the artery. Therefore, people exposed to noise often supplement foods containing magnesium to improve their hearing.
British experts believe that calcium and vitamin D can help protect the small bones in the tympanic cavity and avoid otosclerosis like osteoporosis. Therefore, supplementing some calcium and vitamin D can prevent bone damage.
It can be seen that drinking skim milk can increase the bone mass of ear bone and purify ear artery; Eating carrots, pumpkins, zucchini and other vegetables can supplement β -carotene; Beer, yeast, peanuts, oysters, shellfish and beef and mutton have higher zinc content; Magnesium can be obtained from dark green leafy vegetables and hard fruits. The above foods should be eaten regularly, especially for the elderly and people with hearing loss, to enhance their hearing.