Coffee boosts alertness, energy, and fat metabolism while providing antioxidants that may reduce the risk of Alzheimer’s, Parkinson’s, diabetes, and liver disease. However, excessive intake can cause insomnia, increased heart rate, caffeine dependency, and stomach irritation. To maximize benefits, limit intake to 2-3 cups daily, avoid late consumption, and opt for low-sugar options. Those with health conditions should consult a doctor before regular consumption. Moderation is key.