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The hypothalamus, a small but crucial region in the brain, acts as the body's internal thermostat. It monitors blood temperature, triggers sweating or shivering, and controls hormone release. When temperature rises, blood vessels dilate. When temperature drops, muscles contract to generate heat.

人缺什么容易头晕呢？很多人以为是贫血，其实不是。今天告诉大家一个真相，头晕往往是颈椎出问题了。颈椎不好，血液供应就差，大脑缺氧就来了。教你一个小方法，让头晕问题不再困扰你。

Research shows that our brains process rejection similarly to physical pain. The anterior cingulate cortex activates whether we experience social exclusion or bodily discomfort. This explains why emotional hurt can feel as real as physical injuries. If you found this helpful, like and share with others.

今天跟大家说说高血糖的问题，很多人都觉得没什么大不了的。但是我告诉你，千万不要等到并发症出现才重视。记住三点：不要乱吃偏方，不要随意停药，更不要听信街边小广告。你要知道，预防才是关键。

近期，QS世界高等教育研究机构发布了备受瞩目的2025年QS世界大学排名。今年的排名延续去年方法，新增可持续发展、就业成果和国际研究网络三项指标，并重新调整了学术声誉、雇主声誉和师生比的权重，排名结果因此出现显著变化。 欢迎来到《大开眼界》、今天，我们将带你揭晓全球最顶尖的十所大学。话不多说，我们马上进入正题。

Let's break down how inflammation affects our immune system. When our body detects a threat, whether it's an infection or injury, it triggers an inflammatory response. Think of it like sending emergency responders to a crisis site. While this is helpful short-term, chronic inflammation can lead to various health issues.

You know, when we talk about allergic reactions to medications, I think it's really important to start with a small amount first to test tolerance. There's different options available, and obviously if you have any reaction, you know, stop using it and contact your healthcare provider.

السلام عليكم ورحمة الله وبركاته. اليوم راح نتحدث عن جهاز المناعة في جسم الإنسان. هو نظام معقد جداً لكن خليني أشرح لكم بطريقة سهلة كيف يحمي أجسامنا من الأمراض وكيف يتعرف على الفيروسات والبكتيريا.