1. Calcium in the human body is regulated by the thyroid and parathyroid glands, and maintains a dynamic balance between blood calcium and bone calcium.

2. Calcium is the most abundant inorganic salt in the human body: Calcium is the most abundant inorganic salt in the human body. The calcium content in the normal human body is 1200 to 1400 grams, accounting for about 1.5% to 2.0% of the human body weight, 99% of which is present in bones and teeth.

In addition, most of the 1% calcium exists in the ionized state in soft tissues, extracellular fluid and blood, maintaining a dynamic balance with bone calcium. Calcium in the body, on the one hand, constitutes bones and teeth; on the other hand, it can participate in various physiological functions and metabolic processes, affecting the activities of various organs and tissues.

3. Calcium maintains a certain ratio with magnesium, potassium, sodium and other ions to maintain normal response of nerves and muscles; calcium can regulate the heart beat and keep the heart contracting and relaxing continuously and alternately; calcium can maintain the strength of muscles. Contraction and transmission of nerve impulses; calcium can stimulate platelets and promote blood coagulation on wounds; in the body, there are many enzymes that require calcium activation to show their activity.

Extended information:

The dangers of calcium deficiency:

1. Lack of brain calcium can lead to insomnia

Calcium is insoluble in the metabolism of brain neurons. An important substance that is lacking, sufficient calcium can effectively inhibit the excitability of brain nerves and prevent abnormal nerve excitement from causing insomnia and dreaminess.

2. Lack of fat and calcium will make it easy to "lose more and gain weight"

Calcium has the effect of inhibiting "fat storage hormones". The calcium content determines whether the energy in your body is burned and released, or whether the energy in your body is burned and released. It is stored in the form of fat. In other words, during the diet process, you do not eat the calcium that "suppresses fat", so it is difficult to consume fat.

3. Lack of calcium for digestion can lead to “skinny” sesame seeds

Calcium can activate digestive enzymes such as lipase and amylase in your body. If there is not enough calcium in the digestive system, your appetite will deteriorate, you will feel a loss of appetite, and you will often feel tired.

People's Daily Online - Does lack of calcium make you prone to insomnia? Three serious consequences of calcium deficiency in the human body

Baidu Encyclopedia - Calcium