The Thyroid-Hair Connection: Understanding How Thyroid Issues Impact Your Hair

Your thyroid, a small butterfly-shaped gland in your neck, plays a crucial role in regulating many bodily functions, including your hair growth cycle. 

When this gland becomes overactive (hyperthyroidism) or underactive (hypothyroidism), it can significantly impact the health and appearance of your hair. In this article, we'll explore the link between thyroid disorders and hair health, helping you understand the potential effects and what you can do about it.

Hyperthyroidism and Hair Loss

An overactive thyroid can lead to excessive shedding and thinning hair. This condition, known as telogen effluvium, occurs when the thyroid hormones disrupt the normal hair growth cycle. In hyperthyroidism, the anagen (growth) phase shortens, and the telogen (resting) phase becomes prolonged, leading to an increased number of hair follicles entering the shedding phase prematurely. Getting to understand the hair growth cycle will help enhance your knowledge further about how thyroids impact the hair growth stages.

Hypothyroidism and Hair Thinning

On the other hand, an underactive thyroid can also take a toll on your hair's health. Hypothyroidism slows down the body's metabolic processes, including the hair growth cycle. This can result in slower hair growth, dry and brittle strands, and diffuse hair thinning or shedding. Additionally, hypothyroidism can cause other symptoms like dry skin and nails, which may worsen the appearance of your hair.

Other Hair-Related Symptoms

Besides hair loss and thinning, thyroid disorders can manifest in other ways that affect your hair's appearance:

- Coarse or dull texture

- Excessive oiliness or dryness

- Increased hair breakage and fragility

- Patchy hair loss or bald spots (in severe cases)

Getting to the Root of the Problem

If you're experiencing unexplained hair loss, thinning, or changes in hair quality, it's essential to have your thyroid function evaluated by a healthcare professional. They can order blood tests to check your thyroid hormone levels and determine if an underlying thyroid disorder is the culprit.

Signs and Symptoms of Thyroid Dysfunction

The signs and symptoms of thyroid dysfunction can vary depending on whether the thyroid is overactive (hyperthyroidism) or underactive (hypothyroidism). Here are some common signs and symptoms for each condition:

Hyperthyroidism (overactive thyroid):

1. Weight loss despite increased appetite

2. Rapid heartbeat (tachycardia)

3. Tremors or shakiness

4. Anxiety or irritability

5. Increased sweating

6. Heat intolerance

7. Frequent bowel movements or diarrhea

8. Fatigue or muscle weakness

9. Irregular or absent menstrual periods

Hypothyroidism (underactive thyroid):

1. Fatigue and sluggishness

2. Increased sensitivity to cold

3. Constipation

4. Dry skin

5. Unexplained weight gain

6. Puffy face

7. Hoarseness

8. Muscle weakness

9. Thinning hair

10. Slowed heart rate

11. Depression

12. Irregular menstrual periods

In addition to these signs and symptoms, thyroid dysfunction can also be detected through blood tests that measure the levels of thyroid-stimulating hormone (TSH) and thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3).

It's important to note that some of these symptoms can be non-specific and may be caused by other conditions as well. If you experience any persistent or concerning symptoms, it's recommended to consult with a healthcare professional for proper evaluation and diagnosis.

The Study on Thyroid Levels

A study published in the journal Thyroid analysed data from the National Health and Nutrition Examination Survey (NHANES) III to establish reference ranges for thyroid-stimulating hormone (TSH) levels specific to different groups. The findings revealed that:

• TSH levels tend to increase with age in all groups, reaching nearly 7 mIU/L in the ninth decade for white individuals and 8 mIU/L for Mexican Americans

• The "normal" lower limit is approximately 0.5 mIU/L across all groups.

• Black individuals generally have slightly lower serum TSH levels compared to Mexican Americans or white individuals.

• Women tend to have a reduced lower reference limit and median TSH level compared to men, but no significant difference in the upper limit.

The researchers provided equations to predict TSH reference limits for specific subpopulations based on age, sex, and ethnicity.

However, based on other published research and guidelines, here are some commonly referenced normal TSH reference ranges for different ethnic groups:

Non-Hispanic Whites:

• Normal TSH range: 0.4 - 4.0 mIU/L

African Americans:

• Normal TSH range: 0.49 - 4.67 mIU/L

Hispanic/Latino Americans:

• Normal TSH range: 0.57 - 4.39 mIU/L

It's important to note that these are general reference ranges, and as the article points out, TSH levels can be influenced by factors like age, sex, and the presence of thyroid antibodies. Some experts recommend age-specific reference ranges, especially for older adults.

For example, the British Thyroid Association guidelines suggest the following TSH reference ranges based on age:

• Ages 18-65: 0.4 - 4.0 mIU/L

• Ages >65: 0.4 - 6.0 mIU/L

Additionally, certain conditions like pregnancy can also affect what is considered a normal TSH range.

So while general ethnic-specific ranges provide a guideline, it's best to interpret TSH results in the context of an individual's age, sex, ethnicity, and overall health status, in consultation with a healthcare professional.

Maintaining Healthy Hair Growth Cycles

When thyroid levels are out of balance, it can disrupt the hair growth cycle, leading to issues like excessive shedding (telogen effluvium) or slowed growth. To support healthy hair growth cycles, it's essential to address any underlying thyroid imbalances through proper medical treatment and lifestyle adjustments.

However, incorporating natural remedies like our Hair We Gro hair oil can also provide additional support for hair health. Our unique blend of essential oils, carrier oils, and Ayurvedic herbs offers numerous benefits:

Our Essential Oils:

We use a blend of essential oils, which includes:

• Lavender: Known for its soothing and nourishing properties, lavender oil can promote hair growth and strengthen strands.

• Peppermint: Stimulates blood circulation in the scalp, encouraging hair follicle activity and growth.

• Rosemary: Rich in antioxidants and known for its ability to improve hair thickness and prevent shedding.

Our Carrier Oils:

• Castor Oil: Packed with omega-9 fatty acids, castor oil can improve hair elasticity and prevent breakage.

• Olive Oil: Deeply nourishing and conditioning, helping to restore shine and manageability.

• Coconut Oil: Penetrates the hair shaft, providing nourishment and protection against damage.

Our Ayurvedic Herbs:

• Amla (Indian Gooseberry): A rich source of vitamin C, antioxidants, and essential fatty acids that promote hair growth and prevent premature graying.

• Fenugreek Seeds: Packed with proteins, nicotinic acid, and lecithin, fenugreek is believed to nourish hair follicles, prevent shedding, and add luster.

• Henna Powder: Derived from the henna plant, this natural colorant is renowned for its conditioning properties, helping to strengthen hair strands and enhance shine.

By combining medical guidance, a balanced lifestyle, and natural remedies like our Hair We Gro hair oil, you can support your hair's vitality and growth, even in the face of thyroid imbalances.

Remember, understanding your body's unique needs and seeking personalised care is key to maintaining healthy hair growth cycles. Embrace your normal and let Hair We Gro be your partner in achieving luscious locks.

Treating Thyroid-Related Hair Issues

The good news is that with proper treatment, thyroid-related hair issues can often be reversed or improved. For hyperthyroidism, medications or radioactive iodine therapy may be prescribed to control the overactive thyroid. In cases of hypothyroidism, synthetic thyroid hormone replacement therapy can help restore normal hormone levels.

In addition to medical treatment, maintaining a balanced diet rich in essential nutrients like protein, iron, zinc, and vitamins B and D can support healthy hair growth. Reducing stress, practicing gentle hair care, and considering topical treatments like our Hair We Gro hair oil may also be beneficial.

Remember, patience is key when addressing thyroid-related hair issues, as it can take several months for the hair growth cycle to normalise once your thyroid levels are regulated.

Don't let thyroid disorders take a toll on your crowning glory. By understanding the thyroid-hair connection and seeking appropriate medical care, you can take steps towards restoring the health and vitality of your hair.