Core Viewpoint - The increasing trend of young individuals suffering from health issues, particularly viral meningitis, is linked to poor lifestyle habits such as staying up late and excessive smartphone use, raising concerns about the long-term effects on mental and physical health [1][2]. Group 1: Health Impact - In the past month, Ningbo University First Hospital's infection department has admitted 8 cases of meningitis, with an average patient age of 26, and the youngest being only 16 years old [2]. - A 25-year-old patient experienced viral meningitis after prolonged late-night smartphone use, highlighting the risks associated with such habits [3]. - A 30-year-old patient suffered severe consequences, including a significant drop in cognitive function to that of a 3-year-old, due to viral meningitis and encephalitis caused by similar lifestyle choices [5][6]. Group 2: Mechanism of Illness - The relationship between late-night habits and meningitis is explained by the disruption of the blood-brain barrier and weakened immune response, making it easier for pathogens to invade the central nervous system [6][7]. - Long-term late-night behavior can lead to a disordered neuroendocrine system, further diminishing the body's ability to resist infections [7]. Group 3: Symptoms and Prevention - Common symptoms of meningitis include fever, headache, and neck stiffness, with additional signs like nausea and fatigue [9]. - Prevention strategies emphasize maintaining a regular sleep schedule, ensuring 7-8 hours of sleep per night, and practicing good personal hygiene to reduce infection risk [10][11].

Core Points - The article emphasizes the health risks associated with staying up late, particularly the increased risk of sudden cardiac death due to sleep deprivation and related factors [1][2][4][6]. Group 1: Sleep Deprivation Effects - Continuous lack of sleep for more than three days, with less than four hours of sleep each day, can lead to significant heart strain, increasing myocardial oxygen consumption by three times and raising the likelihood of vascular spasms to five times the normal rate [2]. - Staying awake for 24 hours without compensatory sleep can cause a sharp rise in blood pressure, making even minor physical exertion potentially dangerous for the heart [3]. - Long-term sleep deprivation, defined as less than six hours of sleep per day, combined with chronic conditions like hypertension and diabetes, can accelerate plaque formation in blood vessels due to increased inflammatory factors [4][5]. Group 2: Warning Signs and Symptoms - Symptoms indicating potential heart issues after staying up late include severe fatigue, chest pain, cold sweats, and difficulty breathing, which may signal a heart attack [6]. - The phenomenon of heart palpitations, known as premature beats, can occur during late-night activities, with functional and pathological types distinguished by their frequency and associated symptoms [10][11]. Group 3: Sleep Recommendations - To mitigate the effects of staying up late, it is recommended to take short naps, maintain a light diet rich in B vitamins and proteins, and engage in moderate physical activity during the day [12][14][16].