这个冬天，请给家人和自己备上一顶暖帽！

Core Viewpoint - Wearing a hat in winter is essential for maintaining body heat and preventing various diseases, particularly in relation to brain health [1][4]. Group 1: Importance of Wearing a Hat - Research indicates that without a hat, approximately one-third of body heat is lost from the head at 15°C, and nearly half at around 4°C [1][3]. - The winter season sees an increase in stroke incidents, with a 1.13% rise in stroke risk and a 1.2% increase in mortality risk for every 1°C drop in temperature [3]. Group 2: Benefits of Hat Wearing - Hats help stabilize blood pressure and reduce vascular stress by blocking cold air, which prevents the repeated constriction and dilation of head blood vessels [4]. - Continuous hat wear can keep systolic blood pressure fluctuations in hypertensive individuals between 8-12 mmHg, significantly lower than the 20 mmHg observed in those not wearing hats [4]. - Maintaining head warmth ensures adequate blood flow to the brain, reducing the incidence of light strokes by nearly 18% during winter [4]. Group 3: Risks of Improper Hat Use - Common mistakes include wearing a hat with wet hair, which can lead to abnormal blood vessel contraction and increase the risk of vascular stress [5]. - Prolonged indoor hat wear can impede scalp blood circulation and may lead to slight increases in blood pressure due to overheating [5]. - Choosing hats that are too tight or thick can compress cranial arteries, potentially worsening ischemic conditions for individuals with existing vascular issues [5].