1, normal infant heart rate
The heart rate varies greatly with age. From birth to 17 years old, the heart rate slows down with age. Children's heart rate is fast, mainly due to the increase of basal metabolism, and the performance of neonatal heart rate is very unstable, with an average of 120- 140 beats per minute. 1 The normal heart rate of infants under one year old is between 1 1- 130 beats; The average heart rate of 2-3 years old is about 100- 120 beats per minute.
2. Normal heart rate of children
Before 13 years old, the heart rate of boys and girls was basically the same. After 13 years old, the heart rate of girls was about 5 times faster than that of boys. The average heart rate of children aged 4-7 years old is 80- 100 meals per minute; At the age of 8- 14, the average heart rate is about 70-90 beats per minute. Generally speaking, the heart rate of strong and muscular children can be lower than this value because their heart muscles are developed. Due to strong contraction, although the number of heartbeats is small, the cardiac output is enough for body metabolism.
3. Normal heart rate of adults
The heart rate of healthy adults is about 75% per minute (60-100). Normal adults are 70-80 times when they are quiet, and women are a little faster. In a state of emotional excitement, nervousness or exercise, the heartbeat will accelerate, on the contrary, the heartbeat will slow down; People who often do manual labor and exercise have a slow heartbeat.
4. Normal heart rate of the elderly
Due to the aging process of the body, the physiological functions of various organs of the body are reduced, and the heartbeat of the elderly is relatively slow, generally 55-78 times.
5. What foods protect the heart?
soybean
Soybean contains a variety of essential amino acids, mostly unsaturated fatty acids, which can promote the metabolism of fat and cholesterol in the body.
corn
Corn oil contains unsaturated fatty acids and up to 60% flax oleic acid, which is a good cholesterol absorbent. Corn in Chinese medicine has diuretic effect, which helps to stabilize blood pressure.
potato
This kind of food contains more vitamin C, sodium, potassium and iron. Especially potassium, which contains 502 mg per 100 g, is a rare high-potassium vegetable. Patients with heart disease, especially those with cardiac insufficiency, are often accompanied by hypokalemia. Eating potatoes regularly can not only supplement potassium, but also sugar, protein, minerals and vitamins.
spinach
This product is rich in folic acid and can effectively prevent cardiovascular diseases. In addition, iron and trace elements in spinach can also play a role in enriching blood.
nut
Nuts such as almonds and peanuts are rich in amino acids and unsaturated fatty acids beneficial to the heart, which can reduce the risk of heart disease.
coix seed
Coix seed, a water-soluble fiber, can accelerate the liver to eliminate cholesterol and protect heart health.
semen sesami nigrum
Black sesame contains unsaturated fatty acids and lecithin, which can maintain vascular elasticity and prevent arteriosclerosis.
celery
Celery contains apigenin, which can protect cardiovascular function. Eat celery with leaves, because leaves are the essence of nutrition. Vitamin C in leaves is higher than that in stems, and it is rich in plant nutrients with high nutritional value. Celery is also a food rich in cellulose. The latest research results show that eating more foods rich in cellulose can reduce the risk of heart attack.
wood ear
Edible fungi can stimulate gastrointestinal peristalsis and accelerate cholesterol excretion. In addition, auricularia auricula contains anti-platelet coagulation substances, which have a good health care effect on arteriosclerosis, coronary heart disease and obstructive stroke.
Giant algae
Kelp is a soluble fiber, which is more easily decomposed, absorbed and utilized by the large intestine than ordinary plant fiber, so it can accelerate the excretion of harmful substances such as cholesterol, prevent thrombosis and increase of blood viscosity, and prevent arteriosclerosis.