Caffeine stimulates the central nervous system, which causes a very mild dependence, however , the effects of withdrawal last only a day or two and are far from the withdrawal effects traditionally associated with additions.

The water for making coffee should be heated to 88°C or 92°C to prevent hydrolysis or burning of the sugars. In fact, there is a method for extracting the beverage with cold water.

Not exactly. The stimulating effects of caffeine can increase your metabolism a little, very slightly, but not enough to affect your diet, especially in terms of long-term weight loss. Caffeine may reduce your desire to eat for a short time , but there is not enough evidence to show that long-term consumption helps you lose weight.

A November 2015 study in the journal Circulation found that coffee consumption reduces the risk of death by 15% to 8%.

Caffeine is a stimulant. However, the caffeine you drink in your cup after lunch, is processed almost entirely through the liver at lightning speed (about 75%) and is eliminated from your body in 4-7 hours

The amount of H2O in a cup offsets the dehydrating effects of caffeine