By Fiona Callingham & Rom Preston-Ellis A warning has been issued over a health condition that’s not to be taken lightly, dubbed the “silent killer”. Hypercholesterolemia arises from having an excessive amount of cholesterol in your blood. While this may not initially pose any problems, over time it can escalate your risk for several severe health issues – including heart attacks and strokes. The dangerous build-up of cholesterol in the arteries results in blockages and hinders blood circulation. This is a leading risk factor for cardiovascular disease, which causes nearly 18 million deaths wo…