Is caffeine good or bad for you and why?

Caffeine can have both positive and negative effects, depending on individual tolerance and consumption levels. Moderate intake is associated with benefits like improved alertness, enhanced cognitive performance, and even a lower risk of certain diseases. However, excessive consumption can lead to negative outcomes such as anxiety, insomnia, and increased heart rate. Ultimately, it's important to consume caffeine in moderation and be mindful of one's own health conditions.