For relaxation and the nervous system

Iron

In addition to helping carry oxygen throughout the body, iron is responsible for storing oxygen in the blood and muscles, fatty acid metabolism, energy production, and immune system support.
Iron is a component of the hemoglobin molecule found in red blood cells. Iron is responsible for transporting oxygen throughout the body. How any cell in the body works, including the brain, is very important. Iron is also responsible for the storage of oxygen in the blood and muscles, the metabolism of fatty acids, the production of energy in general and the maintenance of the immune system.

Why does iron deficiency affect mood so much?

The truth is that most iron is absorbed in the duodenum, which is part of the small intestine. However, only five percent of the total iron intake is absorbed. The source of iron we get from food may not be sufficient for many people.
Stomach acid is necessary for iron absorption because it dissolves insoluble iron salts. Iron salts are converted into a form that allows them to be absorbed in the small intestine.
With so many people complaining of stomach acidity today, iron deficiency is on the rise. Frequent use of antacids can reduce stomach acid, and digestion can also be weakened by other factors, including antibiotics and processed foods with bad fats.
More on the importance of iron can be found at:
Iron swelling and five things you didn't know about iron
When iron is too low, the flow of oxygen to the brain is reduced, which can lead to low mood, headaches, shortness of breath, and depression. Poor gut health also leads to poor mood because the gut has a connection to the brain.
When iron is low, it affects the production of all these neurotransmitters, and you can see how it affects mood.
It happens that less concentration is felt. Maybe you don't feel calm. Iron is also a cofactor in the production of myelin, the myelin sheaths that surround your nerves. Lower myelin correlates with low mood and depression.

Magnesium

Magnesium is an important mineral required for the efficient functioning of almost every system in the human body.
Several studies suggest that magnesium plays an important role in anxiety.
2016 m. a study reveals that people with anxiety symptoms associated with premenstrual syndrome benefited from taking magnesium supplements.
Magnesium plays two important roles in the brain, where it can contribute to the following symptoms:

• It blocks the activity of more stimulating neurotransmitters and binds to calming receptors, resulting in a calmer, restful state.
• Helps regulate the release of stress hormones such as cortisol.

More useful information about magnesium can be found at:
Magnesium deficiency and benefits for the body

Vitamin B12

Vitamin B-12 has tremendous benefits for all parts of the body. In addition to reducing anxiety and stress, B-12 also helps improve mood. B12 is considered an energy-boosting vitamin that helps create better red blood cell production and also supports the immune system. B12 is very important for improving mental and emotional state. Provides a calming sensation that reduces anxiety, which is why B-12 is a key ingredient in some supplements.
Among many stress-relieving supplements, vitamin B-12 helps regulate blood flow, reduce depression, and manage stress. This is because B12 normally modifies the stress response, helping the body to respond better to difficult or stressful events. By reducing brain shrinkage and neuronal inhibition. Vitamin B-12 helps prevent cholesterol problems, stroke and other ailments. It is considered a key element in managing stress and anxiety, which is essential for optimal brain function.
Vitamin B-12 can contribute to improved mood and feelings of calmness. Because of its ability to increase serotonin levels, B12 can help you get a good night's sleep while promoting feelings of calmness and peace. If you have a demanding job and find it difficult to calm your mind before going to bed at night, taking B-12 supplements is an option.
It is important to rememberthat everyone's health is individual and there is no common recipe for everyone!
So, if you want to know if your body is currently lacking in electrolytes, health professionals recommend the Test  "Your Day".
*In time, pay attention to the signals sent by your well-being;
*Replenish the body with natural minerals, vitamins and nutrients necessary for health.
*Enjoy energy and good mood every day!