system
Mode: Personal Assistant
human
Synthesize the information from these two articles to provide a summary about the effects of caffeine on the body.
Relevant data:
"Article 1: Caffeine can have a positive effect on physical performance by reducing fatigue and increasing alertness.

Article 2: However, consuming too much caffeine can lead to negative effects such as insomnia, irritability, and increased heart rate."
gpt
While caffeine can have positive effects on physical performance by reducing fatigue and increasing alertness, it is important to consume this stimulant in moderation. Overconsumption of caffeine can lead to negative side effects such as insomnia, irritability, and increased heart rate.