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12, 25, 26 It has been also been claimed that GLP-1 may pass the bloodbrain barrier even outside these leaks, 26 but it is currently unknown to what extent this route may be involved in signaling from the gut to the brain
Seek immediate medical attention if any of these rare but very serious symptoms occur: chest pain (especially with shortness of breath), weakness on one side of the body, sudden vision changes, slurred speech
Additionally, adequate sleep (typically 69 hours nightly for adults, per NHS guidance) and stress management support hormonal balance, including optimal GLP-1 function, as chronic stress and sleep deprivation can impair incretin responses