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First, the cross-sectional design restricts the ability to infer causality from the observed associations, with the possibility that individuals with depression might be more likely to live in environments with secondhand smoke exposure

Through the nAChRs in brain reward circuits, nicotine alters dopaminergic (DA) neuronal function in the ventral tegmental area (VTA) and increases dopamine release from VTA to nuclear accumbens (NA), which leads to nicotine reward, tolerance and dependence

Even beyond veganism, environmental and ethical concerns make many smokers rethink their habits

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Its my favorite park to this day, and when I played there, it felt like the stars aligned