@thecellbrief: Two lab-made peptides. Same gland. Different doorbells. 🔔 Your pituitary is a pea-sized gland under your brain, and it lets out growth hormone. It has two different doorbells. 🚪🚪 Doorbell one answers a brain signal that's half gone in about 7 minutes. Scientists gave a copy of it a tiny hook that grabs a blood protein, and in healthy adults half of it was still around after about a week. 🪝 Doorbell two answers ghrelin, the stomach's hunger hormone. A lab-made peptide just 5 amino acids long was ringing it in 1998, a year before ghrelin itself was found. 🤯 In pigs, it raised growth hormone but not cortisol, a stress hormone. 🐖 Which doorbell story surprised you more? 👇 Education only. Not medical advice. #Science #biology #hormones #ScienceExplained #learnontiktok

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