While small amounts of caffeine have shown potential benefit for conditions such as Alzheimer’s,Parkinson’s, headaches, and depression, too much of a good thing can be harmful. An obvious consequence of too much caffeine is insomnia–but persistent insomnia can then cause fatigue, depression and even suicide. Another risk is caffeine intoxication which can cause symptoms such as like vomiting, palpitations and arhythmias,and high blood pressure. This article provides a good summary–click here.
