Causes of Hair Loss
Hair loss affects up to 60% of women and 80% of men at some point in their lives. Although common, the causes of hair loss can be complex and difficult to determine – particularly for those experiencing hair growth disorders.
No matter the hair loss type or cause, there is almost always an underlying Proteoglycan Follicular Atrophy, making professional guidance from healthcare professionals an important part of understanding and managing the condition.

Most Prevalent Hair Loss Causes
Intrinsic Hair Loss Causes
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The role of genetics in influencing the Hair Growth Cycle is well-established as a significant cause of hair loss for both women and men. However, genetics is not a guaranteed predictor of hair loss. While the genes inherited from each parent can indicate predisposition, they do not definitively determine hair loss outcomes. Research provides an intriguing insight: approximately 20% of individuals presenting Genetic Hair Loss symptoms don’t have any identifiable family members suffering from the condition. This highlights the intricate nature of genetics and its impact on hair health.
Male and Female Pattern Hair Loss stand out as the predominant conditions associated with genetic factors. Nevertheless, other hair loss ailments, like Alopecia Areata, may also have their roots in genetic predispositions. A constant across these conditions is the adverse impact on the Hair Growth Cycle, signifying its pivotal role in hair health.
With the progressive decline of proteoglycan levels in the hair follicle, especially in cases of age-related or Genetic Hair Loss (Androgenetic Alopecia), restoring the balance becomes paramount. Research underscores the importance of supporting hair health by maintaining balanced proteoglycan levels. Such interventions aim to normalise the Hair Growth Cycle, ensuring the best environment for healthy hair growth.
If you’re experiencing initial signs of hair loss or are curious about your genetic predispositions, understanding the intricacies of the Hair Growth Cycle and the role of genetics can guide informed decisions towards maintaining hair health.
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Diabetes, a condition recognized for its gradual onset, poses multiple challenges to the body’s overall state of health. While diabetes is primarily associated with blood sugar regulation, a lesser known yet significant consequence is its impact on hair health. Both direct and indirect effects of diabetes can disrupt the Hair Growth Cycle, leading to increased hair shedding and loss.
Several key factors explain why diabetes can affect hair health:
Poor Blood Circulation: Reduced circulation impedes the efficient transport of oxygen throughout the body, especially to extremities such as feet, hands, and the scalp. This can starve hair follicles of essential nutrients, leading them to weaken and potentially shed hair. Persistent lack of nourishment might also prevent the follicles from generating new hair shafts.
Hormonal Imbalance: Diabetes can introduce irregularities in the body’s hormone production. Such hormonal imbalances directly influence the Hair Growth Cycle, manifesting in events like pregnancy-induced or menopausal hair loss. Weakened Immune System: A compromised immune system, whether due to diabetes, stress, or other illnesses, increases scalp vulnerability. Alopecia Areata, where the immune system mistakenly targets hair follicles, is more prevalent among those with diabetes, resulting in hair loss patches.
Weakened Immune System: A compromised immune system, whether due to diabetes, stress, or other illnesses, increases scalp vulnerability. Alopecia Areata, where the immune system mistakenly targets hair follicles, is more prevalent among those with diabetes, resulting in hair loss patches.
Slow Cell Regeneration & Telogen Effluvium: The regenerative capabilities of cells may slow down due to diabetes, leading to disruptions in the Hair Growth Cycle. Telogen Effluvium, a condition where a sizable portion of hair follicles enter the resting phase and subsequently shed, is also linked to diabetes. Here, instead of resuming growth, many follicles become dormant and cease hair production.
Emotional Stress: Managing diabetes can be an enduring challenge, often causing persistent emotional stress. Studies correlate high levels of psycho-emotional stress with conditions like Alopecia Areata, marked by patchy hair loss. This stress, both physical and emotional, and the subsequent hormonal fluctuations, can further compromise the Hair Growth Cycle.
It’s undeniable that the strain diabetes exerts on the body can directly and indirectly impair hair health. For those noticing early signs of hair loss, understanding the Hair Growth Cycle and its correlation with diabetes can be instrumental in proactive care. Researchers have identified that disruptions in hair growth may be attributed to reduced proteoglycan concentrations, leading to follicular degradation, termed as Proteoglycan Follicular Atrophy. Restoration of these proteoglycan levels is essential for rejuvenating the Hair Growth Cycle and supporting robust hair health.
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Hair loss as well as hair thinning, and shedding is a widespread issue that affects about 60% of women and 80% of men at some point in their lives. The condition of one’s hair is known to be a reflection of personal health as many health factors can influence the Hair Growth Cycle. While stress, genetics, diet and hair styling are among the more well-known causes of hair loss, there are many people who are losing their hair due to different, less commonly known reasons.
As an example, the Hair Growth Cycle can become disrupted as a result of a particularly high fever, certain autoimmune conditions, digestive issues and infections. This can result in Telogen Effluvium or Cicatricial Alopecia.
The most relevant personal health influences on the hair are those that took place 4-16 weeks before the noticeable hair loss; this is due to the duration of the normal Hair Growth Cycle.
It is therefore essential for anyone experiencing even the first onset of hair loss symptoms to use a Proteoglycan Replacement Therapy as an immediate and baseline treatment. This restores the balance in the levels of proteoglycans needed to help normalise the Hair Growth Cycle and restore healthy hair growth.
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Postpartum hair loss is a prevalent phenomenon, affecting an estimated 40-50% of new mothers after childbirth. This is not merely an incidental occurrence but is rooted in the complex interplay of hormones during and after pregnancy.
The Role of Pregnancy Hormones:
During pregnancy, heightened levels of specific hormones prevent excessive hair loss. These hormones play a pivotal role in disrupting the Hair Growth Cycle, primarily by extending the shedding phase’s duration. Consequently, while pregnant, a significant portion of hair remains in its growth phase, leading to thicker, fuller hair.
The Postpartum Shedding Phase:
However, the post-delivery phase brings a stark contrast. Following childbirth, as hormone levels readjust to their pre-pregnancy levels, a disproportionate number of hairs transition into the resting and shedding phases. This shift culminates in what appears to be an abrupt and substantial hair loss event, referred to clinically as Postpartum Effluvium. In some cases, as much as 60% of hair might enter the shedding phase, causing significant hair loss in a short span.
Duration and Impact:
This phase, if unaddressed, can persist, with hair taking up to two years to return to its pre-pregnancy state. While this condition is a natural consequence of the hormonal ebbs and flows associated with childbirth, its impact on a mother’s self-esteem and overall well-being can’t be overlooked.
Navigating the Solution:
For those experiencing postpartum hair loss, proactive steps can mitigate its severity. A proven method to combat this hair loss involves replenishing specific hair follicle proteoglycans, vital components in maintaining a balanced Hair Growth Cycle. This approach, termed Proteoglycan Replacement Therapy, focuses on orally administering bioavailable proteoglycans. This therapy assists in normalising the Hair Growth Cycle and fostering healthy hair regrowth.
In conclusion, postpartum hair loss, though common, doesn’t have to be a prolonged struggle. By understanding its causes and seeking early interventions, new mothers can navigate this phase with confidence, ensuring that their hair regains its health and vitality.
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Hormonal fluctuations, both natural and medication-induced, can profoundly influence the Hair Growth Cycle, leading to noticeable hair loss in both men and women. Understanding these hormonal interferences is crucial for individuals seeking answers to unexplained hair thinning or loss.
The Role of Hormones in Hair Loss:
Hormonal irregularities can disrupt the Hair Growth Cycle, even in the absence of other noticeable symptoms. For women, these imbalances may manifest through irregular menstrual cycles, Polycystic Ovary Syndrome, menopause, or postpartum periods. In men, hormonal variations can also cause hair thinning, primarily seen in conditions like Male Pattern Hair Loss or Androgenetic Alopecia.
Medications and Hair Loss:
Certain medications prescribed for treating hormone-related conditions can contribute to hair loss. This includes oral contraceptives, hormone replacement therapy, anabolic steroids, and other forms of testosterone. All these medicines have the potential to influence hair health.
Patterns of Hormonal Hair Loss:
In males, Androgenetic Alopecia typically presents as an ‘M’ pattern, with the hair progressively thinning, often culminating in baldness. Females experience a diffuse thinning, noticeable by a widening parting, termed Female Pattern Hair Loss. Both conditions result from a genetic shortening of the Anagen (growth) phase, coupled with an extended Telogen (resting) phase. Over time, hair follicles undergo miniaturisation, leading to the production of thinner and less pigmented hair strands.
Addressing the Problem:
Hair loss due to hormonal factors can be distressing, but there are therapeutic interventions available. One such approach involves increasing specific hair follicle proteoglycans concentration to normalise the Hair Growth Cycle. Known as Proteoglycan Replacement Therapy, this method focuses on orally administering bioavailable proteoglycans, fostering a healthier hair growth environment.
In summary, hormonal disruptions, whether natural or medication-induced, can have profound impacts on hair health. Recognising the symptoms and understanding the available treatments can be pivotal for those seeking solutions to their hair concerns.
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Acute or chronic infections place significant physiological stress on the body, and hair loss is a well-recognised consequence. Viral, bacterial, and systemic infections frequently disrupt normal hair growth patterns, resulting in increased shedding that typically occurs weeks or months after the initial illness.
Why Infections Can Trigger Hair Loss:
Infection activates inflammatory and immune-mediated pathways that directly affect rapidly dividing tissues such as hair follicles. Elevated cytokine activity and immune signalling force follicles out of the growth (Anagen) phase and into the resting (Telogen) phase, producing diffuse shedding known as Telogen Effluvium.
The Role of Follicular Support Structures:
Normal hair cycling depends on the integrity of the follicle’s proteoglycan-rich extracellular matrix, which regulates growth signals, maintains immune privilege, and protects follicles from inflammatory damage. During infection, inflammatory mediators disrupt this matrix, impair dermal papilla function, and prolong follicular inactivity. Proteoglycans play a direct role in modulating inflammation within the hair follicle. Specific proteoglycans suppress pro-inflammatory cytokine activity and help preserve follicular immune balance, preventing premature Catagen induction.
Recovery and Hair Regrowth:
Resolution of infection-related hair loss requires restoration of both follicular structure and inflammatory control. Proteoglycan replacement restores the ECM, down-regulates perifollicular inflammation, and re-establishes normal Hair Growth Cycle signalling. This dual structural and anti-inflammatory action enables follicles to re-enter Anagen and sustain healthy hair regrowth following illness.
Extrinsic Hair Loss Causes
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Stress, whether intense or prolonged, can significantly impact the Hair Growth Cycle, leading to noticeable hair loss. The disturbance in hair growth is primarily attributed to an imbalance brought about by stress hormones, particularly cortisol. This hormone, when released in excessive amounts, can interrupt the natural phases of hair growth, leading to conditions such as Telogen Effluvium, where hairs prematurely shift from the growing (Anagen) phase to the resting (Telogen) phase, culminating in increased shedding.
Identifying a specific stressful event as the direct cause of hair loss can be challenging. Yet, there is substantial evidence indicating that both acute and chronic stress events can hasten the onset of hair loss conditions, including Genetic Hair Loss, Alopecia Areata, Trichotillomania, and Telogen Effluvium.
For instance, while there isn’t direct evidence linking the Covid-19 pandemic to hair loss, the stress associated with the changes introduced by the pandemic has led to an increase in hair loss incidences among both men and women.
Interestingly, the signs of stress-induced hair shedding often become evident 4-16 weeks post the triggering event, a delay attributed to the natural duration of the Hair Growth Cycle.
Types of Stress-Induced Hair Loss:
Physical Stress: Events such as accidents or illnesses can disrupt the Hair Growth Cycle, causing excessive shedding. This hair loss, primarily known as Telogen Effluvium, typically manifests about three months post the traumatic event.
Emotional Stress: Like physical trauma, emotional stress can also lead to hair loss. While Telogen Effluvium resulting from emotional stress is often temporary, appearing months post the stressful event, it can become chronic if not addressed.
Trichotillomania: Predominantly observed among children, this obsessive-compulsive disorder compels individuals to twist or pull their hair, resulting in hair loss and scalp damage. The condition is seen twice as often in women as in men and is frequently instigated by stress or depression.
To mitigate the effects of stress-induced hair loss and support the restoration of the Hair Growth Cycle, it’s essential to maintain a balanced environment conducive to healthy hair growth. This involves supporting the body’s natural processes and addressing any hormonal imbalances or deficiencies that may be present.
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Hair, like every other part of our body, thrives on a consistent supply of essential nutrients: protein, glucose, and vitamins. These elements are indispensable not only for optimal hair growth but also for sustaining a balanced Hair Growth Cycle. Interestingly, the hair follicle, classified as a non-essential tissue, is often at the end of the line when it comes to nutrient allocation. This means, in conditions of nutrient scarcity, it’s among the first to experience a deficit. Therefore, prolonged nutritional deficiencies can lead to hair loss. This is further corroborated by the fact that hair fibres are composed of 80-95% protein. Hence, a protein-deficient diet can have direct repercussions on hair health.
One common manifestation of dietary impact on hair health is seen during phases of rapid or severe weight loss. Such drastic changes can cause transient spikes in hair shedding, often recognized clinically as Telogen Effluvium, due to the ensuing metabolic shifts in the body. Even sporadic eating patterns, resulting in decreased energy at the follicular level, can lead to premature hair fall.
To maintain hair health, it’s pivotal to ensure that the Hair Growth Cycle remains undisturbed. A hallmark of a disrupted cycle is the shortening of the Anagen (growth) phase coupled with an extended Telogen (resting) phase. Thus, while commencing with a nutritious, protein-rich diet is foundational, it’s equally imperative to consider supplementary measures that support and help normalise the Hair Growth Cycle, thereby fostering robust hair growth.
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Smoking, an unhealthy habit that has vast implications for various aspects of human health, plays a particularly detrimental role in the health of one’s hair. Central to the negative consequences of smoking on hair is its link to circulatory issues. Cigarette smoking compromises circulation, subsequently diminishing the blood flow crucial for sustaining a robust Hair Growth Cycle.
Recent research has cemented the association between cigarette smoking and adverse impacts on the Hair Growth Cycle, which include:
1. Poor Circulation and Reduced Blood Flow:
A study from Taiwan shed light on the correlation between smoking and hair loss, revealing that individuals who consumed 20 or more cigarettes daily exhibited a heightened susceptibility to baldness. This is believed to stem from smoking’s ability to constrict blood vessels, subsequently reducing the blood flow to the hair follicles. This deprives the hair of vital nutrients, leading to hair thinning and loss.
2. Direct Impact on Hair Follicles:
Apart from the circulatory effects, the toxins in cigarettes can directly damage hair follicles, making them weaker and more prone to hair loss.
Some reports indicate that smoking can lead to reduced levels of several vital nutrients and molecules in the body, including proteoglycans.
To learn more about the relationship between smoking and hair loss, the following clinical studies may provide useful information:
Trüeb, R. M. (2003). Association between smoking and hair loss: another opportunity for health education against smoking? Dermatology, 206(3), 189-191.
Severi, G., et al. (2003). Androgenetic alopecia in men aged 40-69 years: prevalence and risk factors. British Journal of Dermatology, 149(6), 1207-1213.
Zhu, A. Y., et al. (2012). The influence of smoking on the risk of developing baldness in Asian men: A survey-based, cross-sectional study. Journal of the American Academy of Dermatology, 66(4), e167-e168.
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The relationship between medications and hair loss is an area of significant interest for both researchers and those affected. While certain medications might instigate hair loss in some individuals, others remain unaffected.
Medications and Their Effects:
It’s documented that various medications may trigger hair loss. Notably, chemotherapy, antidepressants, thyroid medicines, oral contraceptive pills, and cholesterol medicines often find mention in this regard. However, the reason behind such hair loss is the potential toxicity of these medicines to hair follicles. When these follicles undergo damage, the regular Hair Growth Cycle sees a disruption, leading to the phenomenon of hair loss. Blood thinners also join this list, as several types are known to adversely affect hair health.
Understanding the Hair Growth Cycle:
The typical pattern of hair loss due to medication sees visible shedding approximately 4-16 weeks post the inciting event. This timing aligns with the normal Hair Growth Cycle’s duration. The most recurrent type of hair loss associated with medications like antidepressants is Telogen Effluvium. Characterised by pronounced shedding, this condition emerges due to the Hair Growth Cycle’s disruption, propelling Anagen (growing) hairs to transition into the Telogen (resting) phase prematurely.
Proteoglycans: A Crucial Element:
Over the past few decades, rigorous research on the hair follicle’s function and cycling has revealed the integral role proteoglycans play in hair growth. These specific proteins are instrumental in maintaining the delicate balance of varied influences on the hair follicle, modulating growth factors, and ensuring a healthy dialogue between different compartments of the hair structure. Hence, any disorder or imbalance in hair growth should factor in the critical role of proteoglycans.
Addressing the Issue:
In instances where hair growth faces a disruption, the core issue often lies in Proteoglycan Follicular Atrophy. By incorporating treatments that replenish the levels of specific proteoglycans, it’s possible to rejuvenate the hair follicles and encourage them to re-enter the Anagen phase, commencing a new Hair Growth Cycle.
In summary, while medications might pose challenges to hair health, understanding the underlying mechanisms offers avenues for effective solutions and treatments. Those experiencing the onset of hair loss symptoms due to medication should promptly seek professional advice and consider treatments that focus on restoring proteoglycan balance for optimal hair health.
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Traction Alopecia, often characterised by hair loss through breakage, emerges because of chemical over-processing, the use of heating tools, and improper styling, drying, or brushing techniques. Hair, when exposed to the consistent strain from hairstyling practices – whether through a scorching blow-dryer or aggressive brushing – becomes vulnerable to a plethora of hair fibre issues. These can manifest as breakage, knotting, splitting, and a general lack of lustre. While hair styling is an integral part of many individuals’ daily routines, it’s vital to understand that every form of hairstyling, no matter how gentle, strains the hair. This frequent and sometimes intense styling routine, combined with the potential chemical damage, makes hair more susceptible to Traction Alopecia. This form of cosmetic hair loss weakens the hair along its shaft, leading to myriad challenges for maintaining hair integrity.
For those noticing the initial signs of hair loss or hair breakage, it becomes imperative to adopt proactive measures. One of the foremost recommendations is to continuously support normal hair growth, ensuring the Hair Growth Cycle remains uninterrupted and robust. Treatments aimed at normalising the Hair Growth Cycle, such as those harnessing the power of proteoglycans, have been recognized for their efficacy in restoring and sustaining healthy hair growth.
In essence, while hair styling is a significant contributor to the vibrancy of one’s appearance, it’s essential to balance it with proper hair care. This involves minimising the use of harsh chemicals and hot tools while simultaneously prioritising treatments that fortify the Hair Growth Cycle.
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Excessive or regular alcohol consumption can negatively affect overall health, including the health of the hair and scalp. While occasional drinking is unlikely to cause noticeable hair changes, prolonged or heavy alcohol intake disrupts the Hair Growth Cycle, leading to thinning, increased shedding, and delayed regrowth over time.
How Alcohol Affects Hair Growth:
Alcohol exerts systemic effects that increase oxidative stress and promote a pro-inflammatory state within the scalp. These changes interfere with follicular signalling pathways that regulate hair growth, impair dermal papilla activity, and destabilise the biological environment required to sustain active (Anagen) hair growth.
Impact on the Hair Growth Cycle:
Hair follicles depend on an intact proteoglycan-rich extracellular matrix (ECM) to maintain follicular structure, regulate growth factors, and control phase transitions within the Hair Growth Cycle. Chronic alcohol exposure disrupts this matrix, accelerating Anagen shortening and precipitating premature transition into the resting (Telogen) phase. Clinically, this manifests as diffuse thinning, reduced hair density, and impaired recovery after shedding.
Addressing the Issue:
Restoration of the follicle’s structural and biological environment is central to correcting alcohol-related Hair Growth Cycle disruption. Proteoglycans are essential regulators of follicular signalling, inflammation control, and Anagen maintenance. Replenishing depleted proteoglycans directly addresses ECM dysfunction, restores follicular stability, and re-establishes the conditions required for sustained, healthy hair growth.
Proteoglycans’ roles in hair growth control should always be considered when addressing hair growth disorders, no matter their cause or type, as proteoglycans effectively modulate hair growth signaling pathways.