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Fact: Your body does not develop a tolerance in the way it does with stimulants
Tight junctions between intestinal epithelial cells restrict paracellular transport to molecules with radii well below those of therapeutic peptides, while transcellular transport favors lipophilic small molecules rather than hydrophilic macromolecules (Lundquist and Artursson, 2016)
Getting a flu shot can provide much-needed protection
Cureus 11(4):e4556
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