Final answer:
Brittle, thin nails can indicate health problems or nutrient deficiency and might be affected by exposure to harsh chemicals in nail products or by fungal infections.
Step-by-step explanation:
Very thin nails that are brittle and less flexible than usual can indicate certain health problems, including illness or nutrient deficiency. The condition of our nails can provide valuable clues to our overall health. Nails are composed of specialized epidermal cells filled with keratin, which gives them toughness and hardness.
However, when nails are brittle and fall off, it might be due to several reasons, such as exposure to harsh chemicals found in nail products like dibutyl phthalate (DBP), toluene, and formaldehyde, or due to fungal infections. Nails absorb various substances more readily than skin, which can be harmful.
It's also important to note that factors such as excessive exposure to UV light or an underlying skin condition could affect nail health. If nails are experiencing such changes, it is advisable to seek medical attention as these could be signs of a more serious underlying issue.