Nail shape:
Lily-shaped: nails are long, with obvious protrusions in the middle and curved around, shaped like lily slices. This kind of nail is more common in women and the shape is the most beautiful. However, people with this kind of nails are mostly weak and sick from childhood, especially the digestive system, which is prone to blood system diseases.
Fan-shaped: this kind of nail is narrow under the nail and wide on the top, and the fingertips are curved. Most people with fan-shaped nails are born with strong physique. They have good physical fitness and strong endurance since childhood, but they tend to ignore their health. Adults or the elderly are prone to duodenal ulcer, cholecystitis and even liver disease.
Round: round nails, the owner looks strong and rarely gets sick. This kind of person is very insensitive to diseases, and it is difficult to realize the abnormal condition of his body. So once they get sick, they are often very serious. Ulcer bleeding, pancreatitis, cardiac insufficiency and even cancer are most likely to happen to them.
Bowl shape: oblate and shaped like a bowl. Attention should be paid to chronic diseases of respiratory tract and digestive tract.
Extended data:
The blood calcium of normal people is maintained at 2.18-2.63 mmol/L (9-11mg/dl). If it is below this range, it is considered to be calcium deficiency. However, for the elderly over 60 years old, due to physiological reasons, the parathyroid hormone in the elderly has increased for a long time, resulting in "calcium movement" and increased blood calcium. In this way, the measurement results can not truly reflect the calcium content in the body. Bone mineral density should be measured at this time.
Methods of supplementing calcium:
1, the same dose of calcium, phased supplement is better than large dose supplement absorption. According to the baby's physical condition, the amount of calcium supplement should not exceed 200 mg each time.
2. When supplementing calcium, it is best to take it alone and avoid taking it with milk, root vegetables, zinc and iron. Protein in milk combines with calcium to form milk lumps, and calcium cannot be absorbed by human body. Excessive intake of oxalic acid in food will affect the absorption of calcium.
The absorption of calcium by human body is in competition with zinc and iron. If taken at the same time, it will not only inhibit the absorption of zinc and iron, but also interfere with the absorption of calcium itself. Therefore, it is best to supplement calcium alone. If you need to add other elements, it is best to stagger the time by more than 2 hours.
3. Calcium absorption is better before going to bed at night. When sleeping at night, the gastrointestinal peristalsis is slow, and the food stays in the gastrointestinal tract for a long time, which is beneficial to the absorption of calcium. Blood calcium levels are generally higher during the day and lower at night.
At night, especially in the middle of the night and early morning, low blood calcium level can stimulate the secretion of parathyroid hormone, accelerate the decomposition of bone calcium, produce decalcification, cause hypocalcemia, and even make people twitch in severe cases. Supplementing calcium before going to bed can provide calcium source for calcium regulation at night and block the utilization of bone calcium in the body. Moreover, calcium is related to the stability of autonomic nerve, which has sedative and hypnotic effects.
4, calcium must be supplemented with vitamin D, the absorption of calcium needs vitamin D, and the metabolic balance of calcium is also affected by vitamin D. You can choose to take cod liver oil (vitamin AD) or vitamin D3 preparation, or you can promote the cholesterol in the skin by sunbathing. Convert into vitamin D. According to the nutritional needs of infants and young children, the Chinese Nutrition Association suggests supplementing vitamin D400-800IU every day.
In short, don't miss the golden age of calcium supplementation for infants. In order to make the baby achieve the best calcium supplement effect, we should choose the most suitable calcium source and appropriate dosage, take it before going to bed at night, avoid sharing it with milk and food, supplement vitamin D appropriately and increase the absorption of calcium.
References:
Baidu encyclopedia-calcium supplementation
Baidu encyclopedia-calcium deficiency
Baidu encyclopedia-nail