Human OS人体操作系统

Brad Schoenfeld introduces a new study examining how accurately the subjective sensation of muscle contraction reflects actual muscle activation during exercise.

Brad Schoenfeld 介绍一项新研究，探讨锻炼时肌肉“被感觉到收缩”的主观感受，能否准确反映实际肌肉激活情况。

Brad Schoenfeld and colleagues present a literature review examining how different aspects of resistance training technique affect hypertrophy, questioning the common claim that strict form is essential for muscle growth.

Brad Schoenfeld 团队发表文献综述，考察阻力训练中动作规范程度对肌肉增长的影响，指出“严格技术是增肌必要条件”的说法需经研究检验。

Longevity researcher João Pedro de Magalhães states his opinion that no intervention has yet been proven to slow human aging, and that lifestyle changes can improve health but leave the aging process largely unchanged.

衰老研究学者 João Pedro de Magalhães 指出，目前尚无任何经证实的干预手段能减缓人类衰老进程，生活方式可改善健康但不能改变衰老本身。

Satchin Panda highlights a study comparing six wearable devices against a reference heart-rate measurement across tens of thousands of readings at varying intensities, finding error rates of 8% to 30% across five of the devices.

Satchin Panda 分享一项对比研究，在大量心率读数（从静息到近最大强度）中，六款可穿戴设备与参考心率测量的误差率为 8% 至 30% 不等。

Asker Jeukendrup links to a piece examining whether fish oil's reported effects on heart rate and exercise oxygen cost translate into performance gains for endurance athletes.

Asker Jeukendrup 介绍一篇探讨鱼油是否能降低心率和运动耗氧量、进而提升耐力运动员成绩的文章。

Andy Galpin argues that the widely repeated claim that testosterone drops 1–2% per year after age 30 has a sampling problem, and that social media flattens nuanced science into oversimplified one-liners.

Andy Galpin 指出，“睾酮在 30 岁后每年下降 1–2%”这一说法存在样本问题，相关科学在社交媒体上被过度简化为一句话，实际证据更为复杂。

Brad Schoenfeld notes that a new study by Gomes et al., along with prior meta-analytic findings, challenges the long-held belief that combining aerobic and resistance training compromises strength or muscle hypertrophy.

Brad Schoenfeld 指出，此前认为有氧与抗阻训练结合会损害力量和肌肉增长，但一项新元分析（PMID: 34757594）及 Gomes 等人的新研究对此提出质疑。

Asker Jeukendrup notes that lactate is now recognized as an important fuel during exercise rather than a cause of fatigue, and examines whether the evidence supports claims made for lactate supplements.

Asker Jeukendrup 发文指出，乳酸曾被视为运动疲劳的元凶，如今已被认可为重要燃料，但乳酸补剂的实际证据是否支持其宣传仍存疑问。

Asker Jeukendrup advises that gut trouble during training is more likely caused by non-dietary factors than food intolerances, and recommends ruling out common causes before turning to test kits.

Asker Jeukendrup 建议，训练中出现肠胃不适时，应先排除更常见的原因，而非急于检测食物敏感性。

Brad Schoenfeld suggests that reclining the backrest during leg extensions to reduce hip flexion may better stretch the rectus femoris and enhance its development.

Brad Schoenfeld 指出，将腿举伸展椅背向后倾斜、减少髋关节屈曲角度，可能有助于更充分地拉伸股直肌，从而促进该肌肉的发展。

Chris Beardsley notes that both stretching and strength training improve flexibility, and curiously both appear to do so by increasing stretch tolerance rather than through different mechanisms.

Chris Beardsley 指出，拉伸和力量训练都能提升柔韧性，有趣的是两者似乎都通过提高对牵拉的耐受度来产生效果。

Asker Jeukendrup, citing Dr. Oliver Witard, states that muscle remains responsive to protein for hours after exercise, and that timing matters but is not limited to the immediate post-exercise window.

Asker Jeukendrup 援引 Oliver Witard 的观点指出，运动后肌肉对蛋白质的响应可持续数小时，蛋白质补充的时机重要，但并不局限于运动后即刻摄入。

Matt Walker describes a study using 256-electrode caps across 84 parasomnia episodes, finding that sensory and motor areas at the back of the brain can partially wake while frontal regions for judgement and emotional control remain asleep.

Matt Walker 介绍一项研究：通过 256 电极脑电帽记录 84 次异态睡眠发作，发现大脑后部感觉与运动区域可局部觉醒，而负责判断和情绪控制的额叶区域仍处于睡眠状态。

Asker Jeukendrup points out that "natural" and "all natural" food labels lack consistent definitions, and whether natural foods are actually healthier is far more complex than the labels suggest.

Asker Jeukendrup 指出，“天然”“全天然”等食品标签含义不统一，天然食品是否更健康这一问题远比标签所呈现的复杂。