Essential for the proper functioning of the nervous system and cellular vitality, vitamin B12 directly affects the condition of your nails. A deficiency can lead to   fatigue, concentration problems  , and yes, those famous streaks.  Vegan diets or certain digestive disorders
may be implicated . Consider fortified foods or appropriate supplements, but always consult a healthcare professional.

Thyroid in slow motion: revealing clues

The thyroid gland influences nail growth and regulates our energy and body temperature. If it acts slowly, nails become   dry, brittle, and ridged  .   Unexplained weight gain, feeling cold, or low energy—   all of these signs, when combined, can raise suspicion.
A simple hormone test (TSH, T3, T4) can provide clear answers.

Stress: an often underestimated impact

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