2 Cups Daily Advantages – intake of this amount during the day is a great prevention of Alzheimer’s disease because of the amount of added caffeine increases the number of proteins in the brain that affect memory loss. Also if you consume two cups of coffee 30 minutes before a strenuous activity, you will gain a much greater amount of energy that will help you successfully complete the work. Disadvantages – women who drink two cups of coffee during pregnancy may “suffer” a spontaneous abortion, because caffeine affects the production of adrenaline and hormone cortisol, which are closely associated with the occurrence of this unwanted condition.