Dry Hair, Broken Hair: What Are the Causes?

Estimated reading time: 7 minutes

Hair health is a reflection of overall well-being and the care it receives. Dry, brittle, or broken hair can result from a variety of internal and external factors. Understanding these causes is the first step in restoring hair to its natural strength and shine. Below, we explore the primary reasons behind dry and broken hair.

1. Lack of Moisture

Dry hair often stems from inadequate moisture. This can occur due to:

• Environmental Factors: Overexposure to the sun, wind, or cold weather can strip hair of its natural oils. Prolonged exposure without protection can lead to a dehydrated scalp and brittle strands. Using hats or scarves in extreme weather can help mitigate this (Lee et al., 2011).
• Overwashing: Frequent shampooing, especially with harsh cleansers, removes natural oils that keep hair hydrated. Consider washing your hair less often or switching to a sulfate-free shampoo to retain moisture.
• Hard Water: Mineral-rich water can build up on the hair, leaving it dull and brittle. Using a water softener or clarifying shampoo periodically can combat this problem (P. Itin, 1997).

2. Heat Damage

Excessive use of heat-styling tools like blow dryers, curling irons, and straighteners can weaken hair’s structure. Heat breaks down the protein bonds in hair, leading to split ends and breakage. Additionally, using these tools without applying a heat protectant increases the risk of damage. Allowing hair to air-dry occasionally or using heat tools on a lower setting can minimize harm (Y. Masukawa, 2004).

3. Chemical Treatments

Treatments like coloring, bleaching, perming, or relaxing chemically alter the hair’s structure. Over time, these processes can degrade the hair cuticle, making it prone to dryness and damage. Repeated chemical exposure can cause cumulative harm, leading to irreversible damage in some cases. Opting for less frequent treatments, using hair masks, and choosing ammonia-free or gentler formulas can reduce the strain on your hair (Y. Masukawa, 2004).

4. Nutritional Deficiencies

Hair health is tied to overall nutrition. Deficiencies in vitamins like biotin, vitamin D, and minerals such as iron and zinc can result in weak, brittle hair. A lack of protein in the diet also directly affects hair strength. For example, inadequate iron levels can lead to anemia, which reduces oxygen flow to the scalp and weakens hair follicles. Incorporating a balanced diet rich in leafy greens, nuts, fish, and lean meats can significantly improve hair health. Supplements may also help but should be taken under a doctor’s guidance (Slonim et al., 1992).

5. Improper Hair Care Practices

Simple mistakes in hair care routines can contribute to dryness and breakage, including:

• Brushing Wet Hair: Hair is more elastic and prone to breakage when wet. Use a wide-tooth comb and be gentle when detangling.
• Tight Hairstyles: Constantly pulling hair into tight buns, ponytails, or braids can cause tension and breakage over time. Rotating styles and using softer accessories can prevent this.
• Skipping Conditioner: Conditioner replenishes moisture and forms a protective barrier. Skipping it leaves hair vulnerable to dryness and external damage (P. Itin, 2005).

6. Underlying Health Conditions

Certain medical conditions can manifest in hair issues, such as:

• Thyroid Disorders: Hypothyroidism or hyperthyroidism can make hair dry and brittle. These conditions also affect hair growth cycles, leading to thinning.
• Scalp Conditions: Issues like dandruff, eczema, or psoriasis can weaken hair follicles and contribute to breakage.
• Hormonal Imbalances: Changes during pregnancy, menopause, or due to conditions like PCOS can alter hair texture and strength, often causing dryness or fragility (Itin & Pittelkow, 1990).

7. Aging

As we age, the scalp produces less oil, leading to naturally drier hair. Additionally, hair strands thin over time, making them more susceptible to damage. Incorporating nourishing products specifically designed for aging hair and maintaining a healthy lifestyle can slow these effects (Naveed et al., 2015).

Preventing and Treating Dry, Broken Hair

While some causes of dry and broken hair are unavoidable, many can be managed with proper care. Here are some tips:

• Hydrate Regularly: Use moisturizing shampoos and conditioners and apply leave-in treatments to lock in moisture.
• Protect from Heat: Limit heat styling and always use a heat protectant spray.
• Nourish from Within: Maintain a balanced diet rich in vitamins, minerals, and protein to support hair health.
• Be Gentle: Use wide-tooth combs, avoid tight hairstyles, and pat hair dry with a soft towel instead of rubbing.
• Limit Chemicals: Space out chemical treatments and opt for less damaging options when possible.
• Consult a Professional: If dryness and breakage persist, seek advice from a dermatologist or trichologist to rule out underlying health issues.

By understanding and addressing the causes of dry and broken hair, you can restore its vitality and shine, ensuring your locks stay healthy and resilient.

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