我第一次听说连续血糖监测（CGM）是在听 Peter Attia 的播客节目——正好是在我被诊断为“糖耐量减退”后不久。那时候，我还半信半疑是实验室弄错了。我的血液怎么会出错呢？
I first discovered CGM (Continuous Glucose Monitor) while listening to Peter Attia’s podcast—right after my 2023 prediabetes diagnosis. At the time, I was pretty sure the lab had made a mistake. My diet was clean, I moved every day, and my weight was stable. How could my blood glucose be wrong?
但能实时看到血糖变化的想法让我着迷。我请医生给我开，一位医生却说：“你还不符合条件。”在美国配发CGM似乎需要疾病的“等级认证”，而我只是“糖耐量减退”, 还不够资格。
But the idea of seeing my blood sugar in real time fascinated me. I asked a doctor for a prescription, but she said, “You don’t qualify.”
In the U.S., insurance only covers a CGM if you’ve already been diagnosed with diabetes. Being just prediabetic? Not good enough.
于是我软磨硬泡地请一位医生朋友写个处方，我说我自己掏钱，她同意了——她问我会不会配药，我赶紧说当然会了，虽然来美国后我还从来没有配过药。 怪我一直以为自己身体很好。果不出她所料，药房说配方只有PDF不行，必须直接传真给药房。这个年代，传真？我好说歹说也不行，只能将信将疑地打电话问我的医生朋友，原来这很正常。好吧，传真，仿佛回到了九十年代。
So I begged a doctor friend into writing one for me. I promised I’d pay out of pocket. She asked if I knew how to fill a prescription. “Of course!” I said—though honestly, I hadn’t filled one since moving to the U.S. (What can I say? I always thought I was healthy.) Sure enough, the pharmacy said a PDF wasn’t acceptable. “We need it faxed directly from the doctor.” Faxed. In this day and age. I pleaded, argued—nothing worked. Reluctantly, I called my doctor friend again.
She calmly said, “That’s normal.”
So… fax it was. Straight back to the 1990s.
坚持总会有回报。那台价值300美元的传感器终于到了。我擦干净上臂，有点害怕，“这会很痛吗?” 咬咬牙我把注入器紧紧贴在我的手臂背后，一按按钮，只听见“啪”地一声，手臂感觉一个撞击，没有其他感觉。摸一下，一个圆形扣子状的传感器已经按上了我的胳膊，我成了半机械人。半小时warm up之后App里开始弹出数字点阵，一如心跳。
Persistence pays off. The $300 sensor finally arrived. I wiped down the back of my upper arm, a little nervous.
“Is this going to hurt?”
Gritting my teeth, I pressed the injector firmly against my skin.
One click — “PANG!”
It felt like a quick bump. No real pain. When I touched it, a round button-like sensor was already stuck to my arm. Just like that, I’d become… half cyborg. After a 30-minute warm-up, the app came to life — numbers blinking across the screen like a heartbeat.
这太吸引人了。食物、运动，甚至“零糖”饮料都现出本色：
- 冰淇淋让我冲到170mg/dL。
- 那家好吃的饭店原来会让你的血糖跳得那么高。
- 晚饭后散步会带来“救赎”。
- “无糖”奶茶也让我飙高。居然！
It was mesmerizing. Food, movement, even “zero‑sugar” drinks revealed their secrets:
- Ice cream shot me to 170 mg/dL.
- ChatGPT said:
- That delicious restaurant? Turns out it makes your blood sugar spike like crazy.
- A short post-dinner walk brought relief.
- “Zero sugar” milk tea still spiked me. Betrayal in a cup!
戴上CGM是最好的现实教育：我们自认为健康的那些食物是不是真的适合你。有了它，我变得更自律——再也不用“偷”吃零食因为胳膊上有见证。
Wearing a CGM is the best kind of real-world education: it shows whether the foods we think are healthy truly work for your body. With it, I became more disciplined — no more sneaking snacks, because now there’s a witness stuck to my arm.
