对女生更有用 如果把 iPhone 之后最重要的苹果产品拉一个列表，AirPods 绝对排名前三。 这对不到 10 克重的耳机，在全球卖出了数亿台。它不但彻底改变了人们听音乐的方式，更重新定义了什么是「无线耳机」。 而继前不久爆料 AirPods Pro 3 将加入心率传感器后，9to5Mac 又曝出消息称：苹果还想给耳机加入体温检测功能。 要让耳机不只是耳机，秘诀藏在两个小小的传感器里。 其中一个是我们的老朋友——心率传感器。凭借它，Apple Watch 早就实现了从心率监测到医疗级心电图的跨越。 但把心率检测做到耳机上呢？其实苹果也早就试水过了：自家的 PowerBeats Pro 2 。 也就是说，继「无线」「安静」之后，苹果为 AirPods 赋予的第三个关键词是：健康。 听上去天马行空，但经过一番研究，又觉得合情合理。 为什么是耳机？ 将它引入到用户基数更大的 AirPods Pro 上，似乎顺理成章。 而另一个重点，则是温度传感器。 把体温计塞进耳朵里，听起来有点儿不务正业，但细想之下其实挺合理： 有大量的临床研究表明，相对于其他智能设备可以接触的器官/肢体，耳朵的温度，是最稳定和准确的。 一篇 ...

Core Viewpoint - Johns Hopkins University announced the layoff of over 2,000 employees due to cuts in federal research funding, highlighting the impact of government budget reductions on academic institutions [1] Group 1: Impact of Federal Funding Cuts - The university expressed pride in the affected projects, which include significant work in combating diseases, despite the difficult decision to reduce staff [1] - The Trump administration previously announced the termination of $800 million in funding to Johns Hopkins University, alongside a $400 million cut to Columbia University for its handling of protests supporting Palestine [1] Group 2: Broader Implications for Research - The National Institutes of Health, part of the U.S. Department of Health and Human Services, announced new policies on February 7 to cut research funding as a means to save federal government expenditures [1] - This decision has sparked strong opposition from the academic community, which argues that it will severely impact medical research and undermine the United States' leadership in global scientific research [1]