Core Points - South Korean singer HyunA fainted during a performance at the Water Bomb Music Festival in Macau, with reports suggesting it may be due to vasovagal syncope, a common type of fainting among young people [1][3] - HyunA has previously disclosed her struggles with panic disorder and depression, and she later reassured fans that she is fine and will work on improving her physical fitness [1][6] Summary by Sections Incident Overview - HyunA collapsed on stage during her performance and was carried off by staff [1] - Initial reports indicated her condition might be vasovagal syncope, which is prevalent among young individuals [3] Medical Background - Vasovagal syncope is the most common type of fainting, accounting for over 85% of fainting incidents in individuals under 40 [4] - It is characterized by a sudden drop in blood pressure and heart rate, leading to temporary loss of consciousness [4][5] Causes and Triggers - The exact causes of vasovagal syncope remain unclear, but potential triggers include prolonged standing, pain, emotional stress, and physical exertion [5] - Studies indicate a correlation between recent weight loss and the occurrence of vasovagal syncope, with 11.9% of patients reporting significant weight loss prior to their episodes [6] Psychological Factors - HyunA's panic disorder may be linked to her fainting episodes, as studies show a higher incidence of psychological distress among those with vasovagal syncope [6] - The relationship between anxiety, depression, and vasovagal syncope is still being researched [6] Treatment and Prevention - Non-drug treatments focus on avoiding triggers and improving physical conditioning, such as tilt training to enhance standing endurance [10][11] - If fainting episodes are frequent or unpredictable, further medical intervention may be necessary, including medication or the use of a pacemaker [13]

Core Viewpoint - Low blood pressure, often overlooked compared to high blood pressure, can indicate underlying health risks, particularly in vulnerable populations such as the elderly and pregnant women [1] Summary by Sections Definition and Types of Low Blood Pressure - Low blood pressure is defined as systolic pressure below 90 mmHg and diastolic pressure below 60 mmHg [2] - Blood pressure is a dynamic physiological parameter influenced by various factors, and its significance is not solely based on numerical values but also on accompanying symptoms [2] Physiological vs. Pathological Low Blood Pressure - Physiological low blood pressure is common in young women, children, and adolescents, often without significant health issues [3] - Pathological low blood pressure can arise from underlying diseases or specific conditions, necessitating timely intervention [3] High-Risk Groups for Low Blood Pressure - Elderly individuals are at higher risk due to decreased vascular elasticity and common comorbidities like diabetes [3] - Pregnant women may experience low blood pressure symptoms, especially in late pregnancy, due to blood flow changes [3] - Patients with underlying conditions such as coronary heart disease or those on certain medications may also experience low blood pressure [3] Management and Treatment of Low Blood Pressure - Lifestyle adjustments, such as increased salt intake and hydration, can help manage physiological low blood pressure [4] - For pathological low blood pressure, treating the underlying condition is essential [4][5] Misconceptions about Blood Pressure - Maintaining blood pressure within a normal range is crucial; excessively low blood pressure can lead to organ perfusion issues [6] - The relationship between low blood pressure and longevity is complex and cannot be generalized [6] - The hypertension department also addresses low blood pressure cases, emphasizing a broader focus on vascular health [6]