1 Calcium and vitamin D intake. 2  A diet low in calcium and vitamin D makes you more prone to bone loss. 3  Medication use. 4  Some medicines increase the risk of osteoporosis. 5  Activity level. 6  Lack of exercise or long-term bed rest can cause weak bones. 7  Smoking.
Signs and Symptoms. 1  Nail splitting affects the fingernails and the toenails. The condition may appear as a single horizontal split between layers of the nail plate at the growing end or as multiple splits and loosening of the growing edge of the nail plate.
Answer by jayh4884 (7). Cracked fingernails comes from multiple causes, most causes are from poor nutrition or maintenance of your fingernails. One of the major causes for cracked fingernails is due to damage to your cuticles. Besides nutrition and maintenance, trauma can also cause cracked fingernails.People who are exposed to harsh physical labor, are much more prone to crack their fingernails.add a comment.racked fingernails comes from multiple causes, most causes are from poor nutrition or maintenance of your fingernails. One of the major causes for cracked fingernails is due to damage to your cuticles.