Isla Bennett
There are many factors that influence nail growth, including genetics, overall health, age, nutrition, blood circulation, hormones, exposure to injury or trauma, and the environment. While there is no scientific proof that nails grow faster when sleeping, it is true that nails grow faster during the day and in the summer. A balanced diet rich in essential nutrients like protein, biotin, vitamins A and D, zinc, and iron can promote nail growth. Additionally, good blood flow and circulation are crucial for delivering the necessary nutrients and oxygen to the nails for optimal growth.
| Characteristics | Values |
|---|---|
| Growth rate | 0.1 mm per day or 3.47 mm per month |
| Toenail growth rate | 1.62 mm per month |
| Factors influencing growth | Genetics, nutrition, blood circulation, hormones, overall health, age, exposure to injury or trauma, environment, temperature, climate, type of work, nail care routine |
| Vitamins and nutrients for healthy, strong nails | Biotin, protein, vitamins A and D, zinc, calcium, iron |
| Conditions affecting growth | Thyroid disease, hypopituitarism, diabetes, osteoporosis, onychomycosis, pulmonary tuberculosis, syphilis, nail biting, nail picking |
| Ways to increase nail health | Take biotin, use nail hardeners sparingly, moisturize hands and nails, balanced diet, supplement with calcium, keep nails clean and well-maintained, regular filing and trimming |
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Genetics, health, and age
Nail growth and health are influenced by a combination of genetic, health-related, and age-related factors. While the average nail growth rate is around 3 mm per month, this can vary between individuals due to genetic differences. For example, some people may naturally have faster-growing nails than others.
Health-related factors also play a significant role in nail growth and appearance. Nutritional deficiencies, such as a lack of vitamin B12 or iron, can cause changes in nail colour and texture, making them appear concave, brittle, or weak. Additionally, underlying health conditions such as anaemia, hypothyroidism, inflammatory skin diseases like psoriasis, autoimmune disorders, and vitamin deficiencies can manifest as nail issues.
Age is another factor that affects nail growth and health. As we age, our nails may undergo changes in growth rate, texture, thickness, shape, and colour. The growth rate typically slows down gradually over time, starting as early as age 20, and nails may become more brittle and prone to breaking. Age-related changes in nail curvature and colour, such as the development of dark stripes or ridges, known as "longitudinal melanonychia," are more common in darker-skinned individuals.
Fungal infections, which are prevalent in older adults, can lead to nail thickening and discolouration. Toenails, in particular, are susceptible to fungal infections due to the warm and moist environment created by shoes. Additionally, repeated exposure to harsh chemicals or cosmetics, such as nail polish removers, can contribute to nail brittleness and other changes over time.
While most nail issues are not cause for concern, it is important to monitor any unusual or persistent changes in nail appearance, as they may indicate underlying health conditions. Consulting with a healthcare professional is recommended when nail changes are accompanied by other symptoms or when horizontal lines appear on the nails.
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Trauma and injury
When trauma occurs, the body responds by increasing blood flow and nutrient delivery to the affected area, promoting healing and potentially accelerating nail growth. However, severe trauma can cause nail loss or permanent damage to the nail matrix and nail bed, resulting in cosmetic changes and slower nail growth. In the case of a detached or torn nail, it is crucial to address any bleeding and pain associated with the injury. If the nail remains partially attached, it can be left intact, while the non-adhering portion should be carefully removed. Sharp ends should be filed, and the exposed nail bed should be covered with a suitable ointment and dressed with a clean bandage.
Nail bed injuries, including subungual hematomas (bruising under the nail), often heal on their own. Minor injuries typically produce minor defects in the nail, while more severe trauma can result in permanent deformities. If the nail matrix is damaged, the growing nail may contain noticeable defects. In cases of severe matrix damage, the nail may not regrow completely, and professional treatment may be required. Doctors may opt to remove the nail and repair the nail bed and matrix to ensure proper healing. Antibiotics may also be necessary to prevent or treat infections.
To promote nail health and reduce the risk of trauma, it is essential to practice good nail hygiene. This includes keeping nails clean and dry, trimming them regularly, and avoiding biting or cutting them too short. Wearing properly sized shoes is also crucial in preventing toenail trauma and potential deformities. While there is limited evidence for home remedies, a well-rounded diet and certain supplements, such as biotin, can contribute to stronger and healthier nails.
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Diet and nutrition
While there is no proven method to make nails grow faster, a well-balanced diet can improve nail health and promote growth. Nails, like the rest of the body, require a nutritious diet to thrive. A diet lacking in vitamins, minerals, or protein can lead to weak, brittle, or slow-growing nails.
A well-balanced diet should include protein, water, fruits, vegetables, and a wide array of vitamins and minerals. People who do not get enough iron, for example, may have brittle or dented nails. Calcium is also important for nail health, as it strengthens bones and may also strengthen nails.
There are several specific dietary changes that can strengthen the nails and promote growth. Firstly, increasing protein intake can strengthen brittle nails and prevent them from breaking. Good sources of protein include eggs, chicken, turkey, lean beef, pork, and fish. Vegetarian and vegan sources of protein include lentils, peanuts, nuts, and dairy products such as cheese and milk.
Biotin, a type of B vitamin, is another important nutrient for nail health. Several human studies suggest that taking a biotin supplement daily can help strengthen nails and increase overall nail health. Good sources of biotin include eggs, salmon, lentils, and beans.
Fatty acids are also important for nail health, as they encourage healthy cell development, which aids in the growth of healthy nails. Salmon, flaxseed, and other fatty acid-rich foods can help promote nail growth.
In addition to these specific nutrients, staying hydrated is essential for nail health. Water aids in the delivery of nutrients and oxygen to the cells, so it is important to drink water or other hydrating liquids throughout the day and include hydrating foods such as fruits, vegetables, yogurt, and soups.
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Hormones
Puberty is a critical period for nail growth due to the significant hormonal changes that occur during this time. As hormone levels stabilise with age, nail growth tends to slow down. Additionally, pregnancy can cause hormonal changes that lead to increased nail growth. However, during lactation, nail growth may decrease.
Thyroid disorders, autoimmune conditions, metabolic syndrome, polycystic ovary syndrome (PCOS), and androgen hormone imbalances are all associated with changes in nail growth. For example, women experiencing menopause and osteoporosis may notice alterations in their nails due to hormonal fluctuations and reduced calcium and vitamin D intake.
Testosterone deficiency in men can also impact sleep quality, which may have indirect effects on overall health and nail growth. Adequate sleep is essential for maintaining hormonal balance and promoting nail growth. During sleep, the body releases human growth hormone, which stimulates collagen production, contributing to nail strength and overall nail health.
While hormonal factors influence nail growth, it is important to remember that nail growth is a complex process that involves a combination of genetic, environmental, and lifestyle factors. Maintaining a balanced diet and overall health can help support optimal nail growth and appearance.
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Nail care
Keep Your Nails Clean: It is essential to keep your nails clean and free from dirt and debris. Use a mild soap and warm water to gently scrub your nails and the surrounding areas. Ensure you clean under the nails, as dirt and bacteria can accumulate there. Use a soft-bristled nail brush to avoid damaging the nail bed or surrounding skin.
Trim Regularly: Trim your nails regularly to maintain a healthy length and shape. Aim for a straight or slightly curved shape, as sharp angles can lead to ingrown nails. Use a nail clipper or scissors specifically designed for nails, ensuring they are clean and sharp to prevent nail splitting and tearing. After trimming, file the nails with an emery board in one direction to smooth out any rough edges.
Moisturize: Moisturizing your nails and cuticles is crucial for maintaining nail health. Use a good-quality hand cream or cuticle oil/cream to massage into your nails and the surrounding skin. This helps keep the nails hydrated, preventing brittleness and breakage. Apply moisturizer after washing your hands or anytime your nails feel dry.
Protect Your Nails: Wear gloves when performing tasks that require your hands to be immersed in water for extended periods, such as washing dishes or cleaning. This protects your nails from excessive moisture, which can lead to softening and breakage. Also, when doing activities that may damage your nails, such as gardening or heavy manual labor, wear gloves to protect your nails from breakage and tears.
Maintain Cuticle Health: Avoid cutting or pushing back your cuticles, as this can lead to infection and damage to the nail bed. Instead, gently massage cuticle oil or cream into the cuticles to keep them soft and healthy. If you get a hangnail, resist the urge to pull or bite it. Carefully trim it with cuticle scissors, ensuring sterility, to provide instant relief.
Healthy Habits: Avoid using your nails as tools, such as peeling stickers or opening cans, as this can weaken and damage them. Do not bite your nails or pick at your cuticles, as this can lead to infections and damage to the nail bed. If you have the urge to bite your nails, try finding alternative ways to relieve stress or keep your hands busy, such as squeezing a stress ball or playing with a fidget toy.
By following these nail care instructions and tips, you can ensure that your nails remain healthy and strong. Remember that proper nail care is not only about aesthetics but also about maintaining good personal hygiene and overall health.
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Frequently asked questions
No, there is no evidence that nails grow faster when sleeping. However, nails grow constantly, at a rate of about 0.1 millimetres or 0.004 inches per day.
Several factors influence nail growth, including genetics, nutrition, blood circulation, hormones, overall health, age, exposure to injury or
Maintaining a healthy diet with essential nutrients such as protein, biotin, vitamins A and D, zinc, and iron can promote nail growth. Additionally, keeping your nails clean, moisturized, and well-maintained can prevent breakage, allowing them to grow longer and stronger.
Yes, nails on the dominant hand tend to grow faster due to more frequent use, which can lead to increased injury or trauma. The body's natural response to trauma is to send more blood and nutrients to the affected area, promoting faster nail growth.
Yes, environmental factors such as temperature influence nail growth. Warmer climates are associated with increased nail growth due to improved blood circulation, which delivers essential nutrients to the nail matrix.
