Researcher6076 said:
Your pituitary puts out brief, intense bursts of growth hormone across the day, and the largest one comes at night while you’re in deep sleep. Each pulse climbs quickly, hits a hard peak, then fades fast. From start to finish, it lasts roughly 20–30 minutes. That “on/off light switch” pattern is what keeps GH receptors responsive and stops desensitization.
Inject synthetic HGH, though, and what you get is a steady, raised level of GH circulating for hours. Rather than a spike followed by a drop, it’s closer to opening a tap and leaving it running.
Quite a few systems in your body actually depend on GH arriving in pulses rather than as an unending drip. Take your liver: it only turns GH into IGF‑1 efficiently when it encounters those sharp, high‑amplitude spikes. Your fat‑burning pathways (lipolysis) likewise need GH to rise and fall, since the “off” windows are when insulin sensitivity resets. Even your GH receptors are designed around pulses: they desensitize if GH remains elevated for too long, so the signal weakens the longer the level stays flat. And the sleep architecture behind the biggest natural GH surge (deep slow‑wave sleep) is calibrated to that spike‑and‑drop rhythm, not to a steady background level. Put simply, much of your biology wants GH to act like a light switch, not a dimmer.
Sure, bathing your muscles in continuous, artifical GH will make them grow, but IMO its not the best health choice.