How does NAD+ influence HRV and biomarker data?

[Sophia50]

I’ve been tracking my HRV for about six months now, and I’ve noticed it consistently drops the day after I take my NAD+ booster. I thought the supplement was supposed to support my autonomic nervous system, not stress it. Has anyone else seen a similar correlation with their own biomarker tracking?

[SavannahJM]

Honestly, I’ve been chasing a similar thing with heart-rate variability, and I swear some weeks I mess with sleep or meal timing and the numbers wiggle for days. Then they settle back without any clear signal. The NAD+ booster showed up in my data a few times too, but I don’t know if that’s the driver or just noise.

[AvaM]

I actually did a little self-test: kept the NAD+ dose timing identical for a month, logged the next‑day dip, then swapped to a week with no supplement. The dips showed up inconsistently and I couldn’t pin a causal link.

[StephenM]

Maybe the biomarker is just noisy, or other daily stressors show up in the same window—caffeine, workouts, late nights. I wouldn’t read too much into a single blip.

[Ryan.W]

Do you think the real issue is something else entirely, like sleep quality or hydration?