Core Viewpoint - The article addresses common health misconceptions and provides scientific explanations to debunk them, emphasizing the importance of accurate health information dissemination [1] Misconception Summaries Misconception 1: Drinking hard water leads to kidney stones - Hard water, characterized by high levels of calcium and magnesium, does not directly cause kidney stones in healthy individuals. Insufficient water intake is a more significant risk factor for stone formation [2] Misconception 2: Frequent hair washing causes hair loss - Regular hair washing does not lead to hair loss; instead, it helps maintain scalp health. Hair loss is primarily due to natural hair cycle processes and other factors like genetics and stress [3][4] Misconception 3: Alcohol is necessary for wound disinfection - While alcohol is effective for disinfecting intact skin, it can harm healing tissues in wounds. Non-alcoholic antiseptics like iodine are recommended for wound care due to their lower irritation and higher efficacy [5] Misconception 4: Antihistamines cause dependency - Antihistamines do not lead to physical or psychological dependency. They work by blocking histamine receptors to alleviate allergy symptoms, and stopping them does not cause withdrawal effects [6][9] Misconception 5: Animal fats are more fattening than vegetable oils - Both animal and vegetable oils have similar energy content per weight, and the key factor in weight gain is overall caloric intake rather than the type of fat consumed [10][11]