How Retatrutide Changes Your Heart Rate and Body Temperature #Retatrutide #Metabolism #Science

30 May 2026 · 1 min

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In this explanatory segment, the speaker outlines how the glucagon component of the experimental drug retatrutide influences cardiovascular and thermoregulatory physiology. Research shows it can raise resting heart rate by roughly 5–10 beats per minute. The glucagon also has thermogenic properties, stimulating brown adipose tissue and increasing metabolism, which may make some users feel warmer. Conversely, the drug can trigger a mild fight‑or‑flight response that leads to peripheral vasoconstriction, pulling blood away from the extremities and causing a sensation of coldness in the hands and feet.

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This one surprises people, but the glucagon component of retatrutide can literally tell your heart to beat faster. Average increase is about 5 to 10 beats per minute, at least in the research. Some people also notice that they run slightly hotter or colder than usual. Well, glucagon can be thermogenic and increase brown fat and metabolism, which can warm you up. And for some people, if the body is in a slight fight or flight state from the drug, their blood vessels can constrict and pull blood away from the extremities.