In my personal hypertension monitoring, the first reading invariably registers an elevated heart rate.

Drinking large quantities of alcohol also causes overheating and sweating, and an elevated heart rate.

Elevated heart rate can result in significantly higher cardiac work, which can result in symptoms of angina.

Additionally, severe cerebral hypoxia causes an elevated heart rate, and in extreme cases the heart may tire and stop pumping.

Early symptoms of systemic envenomation include goose bumps, sweating, tingling around the mouth and tongue, twitching (initially facial and intercostal), salivation, watery eyes, elevated heart rate and elevated blood pressure.