Secrets Your Nails Reveal About Your Health

2. Split or Cracked Nails

Exposure to chemicals and environmental factors can lead to brittle nails. Hypothyroidism, fungal infections, or deficiencies in biotin, protein, or iron may also cause splitting. Protecting hands, moisturizing, and eating a nutrient-rich diet can help prevent these issues. Nail strengtheners and moderate nail length can further reduce risks.