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Things You Need to Know About Hair Loss

Hair loss is clinically known as Alopecia. The normal hair growth cycle is divided into four stages: anagen(growth), catagen (involution), telogen (resting), and exogen (shedding of hair).

Did you know? Shedding 100 strands in a day is normal for hair loss.

The most common type of hair loss in both men and women is called androgenetic alopecia, or female (or male) pattern hair loss. Androgenetic alopecia involves the action of hormone androgens which plays important role in regulating hair growth. Excessive activation of androgen shortens the hair’s growing phase thereby causing the hair follicle to shrunken and making it harder to grow.

In men, hair often begins to grow less at the hairline on the forehead. While women do not usually go bald but have hair thinning predominantly over the top and front of the head.

 

Many different conditions can lead to hair loss, including:

Genetic: Male or female pattern baldness or androgenetic alopecia is a genetic condition due to excessive response of androgens which affects nearly half of males and females.

Pollution: The pollutants including particulate matter, dust, smoke, nickel, lead and arsenic, sulfur dioxide nitrogen dioxide, ammonia and polycyclic aromatic hydrocarbons (PAH) can settle on the scalp and hair across the epidermis then migrate into the dermis and through the hair follicle channel, leading to oxidative stress and hair loss.

Hormonal changes and medical conditions: Signalling of thyroid hormone play a role in skin proliferation and hair growth. Hence medical conditions such as thyroid disease often seen with hair loss problems.

Radiation therapy to the head/ chemotherapy: Chemotherapeutics and high-dosage radiotherapy to the head and neck can cause damage to hair follicles.

Over-supplementation of some nutrients in absence deficiency may result in multiple toxicities, while over-supplementation of certain nutrients including vitamin A and selenium may actually result in hair loss. 

Apart from that, many more factors such as stress, medications, nutritional deficiency, and vigorous styling can affect hair growth, leading to hair loss. 

 

Below are nutrients that you need for healthy hair:

 

Here are few tips to prevent hair loss:

  • Practicing a healthy and balanced diet
  • Be gentle with your hair
  • Consult the doctor about medications and supplements that might cause hair loss
  • Protect your hair from sunlight and other sources of ultraviolet light
  • Stop smoking
  • Use the cooling cap to reduce the risk of losing hair during chemotherapy

 

Homey provides suitable meals with adequate nutrition to keep your hair healthy. Use promo code “HOMEBLOG” to get a 5% discount when buying meals at Homey!

 

References:

  1. Ho CH, Sood T, Zito PM. Androgenetic Alopecia. [Updated 2020 Sep 29]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK430924/
  2. Qi, J., & Garza, L. A. (2014). An overview of alopecias. Cold Spring Harbor perspectives in medicine, 4(3), a013615. https://doi.org/10.1101/cshperspect.a013615
  3. Almohanna, H. M., Ahmed, A. A., Tsatalis, J. P., & Tosti, A. (2019). The Role of Vitamins and Minerals in Hair Loss: A Review. Dermatology and therapy, 9(1), 51–70. https://doi.org/10.1007/s13555-018-0278-6
  4. Guo, E. L., & Katta, R. (2017). Diet and hair loss: effects of nutrient deficiency and supplement use. Dermatology practical & conceptual, 7(1), 1–10. https://doi.org/10.5826/dpc.0701a01
  5. Yu, V., Juhász, M., Chiang, A. & Atanaskova mesinkovska, N. 2018. Alopecia and Associated Toxic Agents: A Systematic Review. Skin Appendage Disorders 4(4): 245-260.
  6. Prochilo, T., Huscher, A., Andreis, F., Mirandola, M., Zaina, E., Pomentale, B., Pedrali, C., Zanotti, L., Mutti, S., & Zaniboni, A. (2019). Hair Loss Prevention by a Scalp Cooling Device in Early Breast Cancer Patients: The Poliambulanza Preliminary Experience. Reviews on recent clinical trials, 14(1), 66–71. https://doi.org/10.2174/1574887113666181120111104
  7. Rajput R (2015) Understanding Hair Loss due to Air Pollution and the Approach to Management. Hair Ther Transplant 5:133. doi:10.4172/21670951.1000133
  8. Grymowicz, M., Rudnicka, E., Podfigurna, A., Napierala, P., Smolarczyk, R., Smolarczyk, K., & Meczekalski, B. (2020). Hormonal Effects on Hair Follicles. International journal of molecular sciences, 21(15), 5342. https://doi.org/10.3390/ijms21155342
  9. Vincent, M., & Yogiraj, K. (2013). A Descriptive Study of Alopecia Patterns and their Relation to Thyroid Dysfunction. International journal of trichology, 5(1), 57–60. https://doi.org/10.4103/0974-7753.114701
  10. Haslam, I. S., & Smart, E. (2019). Chemotherapy-Induced Hair Loss: The Use of Biomarkers for Predicting Alopecic Severity and Treatment Efficacy. Biomarker Insights, 14, 1177271919842180. https://doi.org/10.1177/1177271919842180
  11. Contreras-Jurado, C., Lorz, C., García-Serrano, L., Paramio, J. M. & Aranda, A. 2015. Thyroid Hormone Signaling Controls Hair Follicle Stem Cell Function. Molecular Biology of the Cell 26(7): 1263-1272.
  12. Haider, M., Hamadah, I., & Almutawa, A. (2013). Radiation- and Chemotherapy-Induced Permanent Alopecia: Case Series. Journal of Cutaneous Medicine and Surgery, 17(1), 55–61. https://doi.org/10.2310/7750.2012.12033
  13. Palma, G., Taffelli, A., Fellin, F., D'avino, V., Scartoni, D., Tommasino, F., Scifoni, E., Durante, M., Amichetti, M., Schwarz, M., Amelio, D. & Cella, L. 2020. Modeling the Risk of Radiation-Induced Alopecia in Brain Tumor Patients Treated with Scanned Proton Beams. Radiotherapy and Oncology 144:127-134.
  14. Jacobs, J.B. and Monell, C. (1979), Treatment of radiation‐induced alopecia. Head Neck, 2: 154-159. https://doi.org/10.1002/hed.2890020211
  15. Rajendrasingh JR (2017) Role of Non-Androgenic Factors in Hair Loss and Hair Regrowth. J Cosmo Trichol 3: 118. doi:10.4172/2471-9323.1000118
  16. Babadjouni, A., Pouldar Foulad, D., Hedayati, B., Evron, E. & Mesinkovska, N. 2021. The Effects of Smoking on Hair Health: A Systematic Review. Skin Appendage Disorders.
  17. Contreras-Jurado, C., Lorz, C., García-Serrano, L., Paramio, J. M., & Aranda, A. (2015). Thyroid hormone signaling controls hair follicle stem cell function. Molecular biology of the cell, 26(7), 1263–1272. https://doi.org/10.1091/mbc.E14-07-1251