Is there any good read on how to take care of penile artery/endothelial health for adequate blood flow and stronger erections?

See below : Best advice is that whatever is good for your heart is good for your overall endothelium and penile vascular system: proper healthy diet, maintaining ideal body weight, regular physical exercise, avoiding tobacco use, adequate sleep, stress reduction, and maintaining normal blood pressure, glucose, and cholesterol. There are no shortcuts, magic pills or supplements that can substitute for these.