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Therefore, switching from smoking to vaping does not fully protect your eye health

Shuttling of AMPA receptors into and out of nerve cell membranes is well known to underly long-term potentiation and depression, but the new study shows, for the first time, that removal of AMPA receptors from nerve cell membranes is controlled by astrocytes

Gas exchange by direct diffusion across surface membranes is efficient for organisms less than 1 mm in diameter

Therefore, context matters

"Office of the Secretary of the Treasury" (PDF)

While smoking cessation can reduce reproductive health issues among women, those diagnosed with reproductive disorders like ovarian cancer whose risk is also increased by smoking may need more than just lifestyle changes