19/06/2026
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New in iScience: a tiny calf movement you can do while sitting cut post-meal blood sugar spikes by ~52% and post-meal insulin by ~60%.
The study: a 2022 University of Houston trial measured the "soleus pushup" -- a slow seated heel raise that contracts the soleus muscle, a deep calf muscle uniquely built for hours of low-fatigue work. When subjects did continuous soleus contractions while sitting through an oral glucose tolerance test, peak glucose and insulin release both dropped sharply versus quiet sitting.
Honest caveat: this was a small mechanistic crossover study (n=15 subjects, single session, surrogate endpoint). Real-world durability and effects on HbA1c or hard outcomes are not yet established. Treat this as a strong physiology signal, not a replacement for medication or daily activity.
Today's drop: do slow seated heel raises for 5-10 minutes after each meal -- press the balls of your feet down, lift heels, hold a second, lower. Repeat steadily while you work or watch TV.
The metabolic tie-in: the soleus pulls glucose out of the bloodstream through an insulin-independent pathway. That means less work for the pancreas, less circulating insulin, and less of the metabolic gridlock that drives type 2 diabetes, fatty liver and cardiovascular disease.
Full breakdown coming on the Health Longevity Secrets podcast https://www.youtube.com/
Source: https://www.cell.com/iscience/fulltext/S2589-0042(22)01313-2