Hidden Signs of Dehydration That Aren't Just Thirst

27. Nail Brittleness – Dehydration at the Tips

Dry, peeling, or brittle nails are often blamed on diet or nail polish—but internal hydration plays a huge role. Nails are made of keratin, a protein that needs moisture to stay flexible and strong. Without enough water, nails dry out just like skin—leading to splits, peeling, or breaks. If your nails are cracking even with proper care, dehydration could be the root cause. Think of your nails as a hydration status report—visible, slow-growing indicators of how well your body is nourished from within. Upping your water intake won’t fix them overnight, but over time, you’ll see the difference at your fingertips.

28. Increased Sensitivity to Pain

If you've been feeling more sensitive to pain than usual, dehydration might be the surprising culprit. When your body is low on water, it can lower your pain tolerance threshold. This happens because a lack of fluid can reduce the volume of blood, impacting the nervous system's ability to send and receive signals efficiently. Your body may also release higher levels of pain-signaling molecules. As a result, minor aches and discomforts can feel amplified. Before reaching for a painkiller, consider hydrating. Restoring your fluid balance can help calm your nervous system and return your pain perception to normal.