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This may seem like a small number, but over time, repeated spikes in blood pressure contribute to long-term damage to the heart and blood vessels

longitudinal studies with multiple follow-up periods provide the strongest evidence of temporal precedence, whereas cross-sectional studies are considered weaker because they cannot exclude the possibility of reverse causation

K., Warner, S

Nicrid filters help reduce smoking hazards Regular use of premium quality advanced filters reduces coughing and shortness of breath and decreases other unwanted effects of smoking such as stains on teeth and fingers

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