Sage (Salvia officinalis) is an ancient herb. It is an evergreen perennial shrub with a pungent flavor and aromatic scent, found in the Mediterranean Basin and southeastern Europe.

It has been used since the Roman era for many medical and therapeutic purposes, and is currently used in the manufacture of many medical and pharmaceutical preparations.

Sage grows in alkaline and sandy soil with sufficient sunlight. It is characterized by its woody branches and furry leaves that are grayish-green in color. It blooms in the summer with violet and blue flowers that attract bees.

Health benefits of sage
There are many health benefits of sage, let us learn about them as follows:

1. Enhancing mental abilities and preventing Alzheimer's
   Sage leaves contain the compound Thujone, which stimulates the secretion of GABA and serotonin neurotransmitters, which help with the following:

Increase concentration, improve mental processes, alertness, mental abilities and thinking process.
Strengthening memory and enhancing the functioning of the senses when taken orally.
Its scent helps enhance alertness and awareness. 
A study conducted on a group of students who were given different doses of sage oil before tests for cognitive performance also showed an increase in the speed of retrieving information in tests related to memory, a general improvement in alertness and perception, and an enhancement of mood. These characteristics are of great importance to researchers in the field of Alzheimer’s treatment.

2. Anti-inflammatory and anti-allergic
   Sage contains active compounds and materials, such as: Cineol, Borneol, and Chlorogenic, which enhance the benefits of sage in the following cases:

Prevention of infections.
Anti-allergic and anti-irritant.
Repels parasites and fungi.

3. Promoting heart health and lowering cholesterol
   Here is an explanation of the role of sage in promoting heart health and lowering cholesterol in the following:

The flavonoids known as salvigenin (Salvigenin) contained in some sage varieties help relax blood vessels and protect against heart and arterial diseases.
The potassium, magnesium, manganese, and calcium content of sage helps control heart rate and blood pressure, and maintain fluid balance in the body.
The results of a study conducted on a group of women showed that drinking sage tea three times a day for a month led to a significant decrease in bad cholesterol levels (LDL) and triglyceride levels, and an increase in the level of good cholesterol (HDL) in the blood.
Which may make sage a positive role in treating high blood cholesterol levels.

Nutritional value of sage

There are many basic active ingredients and nutrients found in Salmiya, such as:

Volatile oil, with a percentage of up to 2%, consists mainly of thujone, cineol, and many other substances.
Astringent tannins.
Organic acids.
Rosmarinic acid.
Estrogens, including picrosalvine.
A group of vitamins and minerals such as vitamin B complex, vitamin A and vitamin C

Links to documentation

https://www.webteb.com/articles/%D9%81%D9%88%D8%A7%D8%A6%D8%AF-%D8%A7%D9%84%D9%85%D9%8A%D8%B1%D9%85%D9%8A%D8%A9_16888

https://www.youm7.com/story/2018/11/26/%D9%81%D9%88%D8%A7%D8%A6%D8%AF-%D8%A7%D9%84%D9%85%D8%B1%D9%85%D8%B1%D9%8A%D8%A9-%D9%83%D8%AB%D9%8A%D8%B1%D8%A9-%D8%A3%D8%A8%D8%B1%D8%B2%D9%87%D8%A7-%D8%AA%D9%82%D9%88%D9%8A%D8%A9-%D8%A7%D9%84%D8%B9%D8%B8%D8%A7%D9%85/4044670

http://www.bestherbseg.com/en/sage-for-export/

Video about sage