coffee side effects scholarly articles
Research Showing Harmful Effects of Caffeine. 1  More than 4 cups of coffee linked to early death. 2  Caffeine consumption may raise blood pressure. 3  Increased risk of heart attacks among young adults.  Caffeine linked to gout 1  attacks. Breast Tissue Cysts In Women.  Caffeine could cause 1  incontinence. Caffeine may cause insomnia.