What Your Nails Reveal About Your Health: Surprising Signs You Shouldn’t Ignore

2.Split or Cracked Nails

Chemicals and environmental stress can make nails fragile and easy to split. Fungal infections and hypothyroidism, which lowers hormone levels, are also common causes. If you have other symptoms like weight gain, low mood, or tiredness, hypothyroidism could be involved. Split nails might also signal a lack of biotin, protein, or iron. Frequent washing, harsh cleaners, and cold weather further weaken nails. Wearing gloves, moisturizing, and eating a balanced diet help protect them. Nail strengtheners and keeping nails at a moderate length reduce the risk of splits and cracks.