Eyelashes, the hairs that grow along the eyelids, may seem simple but they play an extremely important role in protecting and keeping our eyes healthy. So why do we have eyelashes? This article will provide you with detailed information about the function, structure and role of eyelashes, and explain the factors that affect the thickness and length of eyelashes.
1. Function of eyelashes
The main function of eyelashes is to protect the eyes from external agents :
- Prevents dirt, insects, sweat and other tiny objects from entering the eyes. Eyelashes form a physical barrier, helping the eyes avoid irritants and damage.
- Reduces strong light shining into the eyes. Curled eyelashes help regulate the amount of light entering the eyes, protecting the eyes from the harmful effects of UV rays.
- Keep your eyes moist. Eyelashes help limit tear evaporation, keeping your eyes moist润.
- Enhances the sense of the eyes. Eyelashes act as mini whiskers, helping to detect slight impacts around the eyes, thereby blinking reflex to protect the eyes.
2. Structure of eyelashes
Each eyelash consists of 3 main parts:
- Root: Located deep in the eyelid skin, where the eyelash follicles are nourished.
- Eyelash shaft: The part of the eyelash that protrudes from the skin and can be seen with the naked eye.
- Tip: The last part of the eyelash, usually pointed and slightly curved.
Eyelashes are composed mainly of keratin protein, with small amounts of melanin and lipids.
3. Factors affecting the thickness and length of eyelashes
The thickness and length of eyelashes depends on many factors, including:
- Genetics: This is the most important factor that determines the thickness and length of your eyelashes. If your parents have thick and long eyelashes, you are likely to have this trait too.
- Health: A balanced, nutritious diet, especially with essential vitamins and minerals, will help promote eyelash growth. Conversely, nutritional deficiencies or medical conditions can affect the health of your eyelashes.
- Hormonal balance: Hormonal changes, especially in pregnant or menopausal women, can affect the thickness and length of eyelashes.
- Care: Using the right eyelash care products, avoiding vigorous eye rubbing, and thoroughly removing makeup can help improve the health and beauty of your eyelashes.
4. Some interesting information about eyelashes
- On average, each person has about 100 to 150 eyelashes on the upper eyelid and 50 to 75 eyelashes on the lower eyelid.
- Eyelashes have an average lifespan of about 90 days.
- Eyelashes can grow back after falling out, however regrowth can take several weeks or months.
- Some people may experience eyelash loss due to factors such as stress, nutritional deficiencies, or use of inappropriate cosmetics.
5. Conclusion
Eyelashes play an important role in protecting and maintaining the health of your eyes. Understanding the function, structure and factors that affect eyelashes will help you care for them effectively, contributing to keeping your eyes healthy and beautiful.
