The Claim
Prolonged 48-hour modest hyperinsulinemia induced by glucose infusion in lean, normotensive young adults significantly reduces nocturnal heart rate variability, as measured by the root mean square successive difference, and elevates nocturnal blood pressure by approximately 5 mm Hg, indicating a direct disruption of autonomic circadian regulation.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In healthy young adults, maintaining elevated insulin levels for 48 hours through glucose infusion lowers heart rate variability during sleep and raises nighttime blood pressure by about 5 mm Hg, which reflects altered autonomic nervous system control of circadian rhythms.
See the scientific wording
Prolonged 48-hour modest hyperinsulinemia, induced by glucose infusion in lean, normotensive young adults, significantly reduces nocturnal heart rate variability, as measured by the root mean square successive difference, and elevates nocturnal blood pressure by approximately 5 mm Hg, indicating a direct disruption of autonomic circadian regulation.
High insulin levels over two days reduce the nervous system's ability to slow the heart at night, causing the heart to beat faster and blood pressure to stay elevated when it should drop.
What the research says
1 studyWhen scientists gave healthy young adults extra insulin for two days, their hearts didn’t slow down as much at night and their blood pressure stayed higher than usual — meaning the body’s natural nighttime relaxation was disrupted.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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