Coffee is a vice. It warms cups at dawn and energises afternoons. Perhaps "guilty" is overblown and obsolete. Modern research shows coffee's health advantages and debunks several myths.
Johns Hopkins Medicine says natural chemicals in coffee may lessen Alzheimer's risk. Two to three cups of coffee daily may prevent Alzheimer's and dementia, according to studies.
It may also help maintain a healthy liver, decrease inflammation, and reduce the risk of CHD, type 2 diabetes, colon cancer, renal disease, and Parkinson's disease. That's some excellent coffee.