A short-term effect of tobacco use, such as smoking, is an increase in heart rate and blood pressure. This occurs due to the nicotine in tobacco, which stimulates the release of adrenaline. Additionally, smoking can lead to immediate respiratory issues, such as coughing and shortness of breath, as well as reduced oxygen levels in the blood. These effects can contribute to a feeling of heightened alertness but also strain the cardiovascular and respiratory systems.
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