Why is coffee good for you?
Caffeine, getting into the body, stimulates the production of the hormone adrenaline, which causes a rapid influx of energy and a feeling of cheerfulness. Also, the ingestion of caffeine into the blood affects hormones such as adenosine, the “sleep hormone”, the absorption of which is inhibited by caffeine, which reduces drowsiness and sharpens attention, cortisol (“stress hormone”), dopamine, etc.
Thus, caffeine is a kind of "bomb" for the body, forcing it to mobilize to perform tasks and throwing fatigue, drowsiness, and apathy to distant frontiers.

In addition, the effect of coffee manifests itself in other areas. For example, coffee has a positive effect on the condition of the teeth, preventing the development of caries (protects the oral cavity from harmful microorganisms due to its composition).
Coffee reduces the susceptibility of muscles to pain, protects against liver cirrhosis, helps to cope with the negative effects of smoking (reduces the risk of developing bladder cancer).
Coffee reduces the chance of developing gout. A drink made from aromatic grains helps to get rid of excess fat, contributing to weight loss.
Thus, we can confidently say that with moderate consumption, the effect of coffee on the body is only positive.