Cause 6: Extreme Weather – Winter’s Hidden Damage
Cold, dry air sucks moisture. Moisturize cuticles; wear gloves outside. Many report worse brittleness in winter.
Cause 7: Thyroid Imbalances – The Hormonal Link
Hypo/hyperthyroidism often causes brittle, ridged nails. A 2022 review noted frequent brittleness in thyroid patients.
Emily, 39, felt sluggish; nails peeled. Thyroid treatment plus diet tweaks restored them.
Still skeptical? Blood tests confirm easily.
Mid-article quiz time! Engage deeper:
- How many causes covered? (7)
- Your biggest nail struggle?
- Predict next cause’s twist.
- Nail strength 1-10 now vs start?
- Ready? Yes—elite territory ahead.
Congrats! You’re in the top 20%.
Cause 8: Psoriasis or Skin Conditions – Beyond the Surface
Psoriasis pits nails, causes splitting. Treating underlying issue improves them.
Cause 9: Fungal Infections – Sneaky Destroyers
Yellow, thick, brittle? Antifungals help. Common in moist environments.
Cause 10: Physical Trauma & Aging – The Cumulative Hit
Using nails as tools damages; age dries them. Trim short; moisturize with omega-3s.
| Cause | Key Sign | Quick Fix | Timeline for Improvement |
|---|---|---|---|
| Biotin Lack | Splitting, peeling | Eggs, nuts, supplement | 4-8 weeks |
| Iron Deficiency | Spoon-shaped, pale | Red meat, lentils | 2-6 months |
| Low Protein | Soft, breaking | Lean meats, legumes | 6-12 weeks |
| Dehydration | Dry, brittle | 8+ glasses water | Days to weeks |
| Chemicals | Stripped layers | Gloves, gentle products | Ongoing protection |
| Thyroid Issues | Ridged, slow growth | Medical check/treatment | Varies with therapy |
| Psoriasis/Fungal | Pitting, discoloration | Targeted treatment | 4-12 weeks+ |
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