Assertion: caffeine | /r/Causes | increased heart rate
Facets:
Source sentences:
text: Caffeine can cause insomnia, nervousness and restlessness, stomach irritation, nausea and vomiting, increased heart rate and respiration, and other side effects.
text: …we used to be worried that caffeine raises high blood pressure and causes increased heart rate, but it appears to be less risky than we thought.