Here's why:
* Sharp edges: A sharp, pointed edge creates a stress point, making the nail more prone to breaking and splitting.
* Rounded edges: A rounded shape distributes the stress evenly across the nail, making it more durable and less likely to split.
Important Note: While shaping the nail can help, it's also crucial to address the underlying causes of splitting, which can include:
* Dehydration: Keep your nails moisturized.
* Over-filing: Avoid excessive filing.
* Harsh chemicals: Limit exposure to strong detergents and solvents.
* Nail biting: Avoid this habit.
* Nutritional deficiencies: Ensure you're getting enough nutrients for healthy nail growth.
If splitting persists, consult a dermatologist or nail technician for professional advice.