Chemical Safety is achieved by undertaking all activities involving chemicals in such a way as to ensure the safety of human health and the environment. It covers all chemicals, natural and manufactured, and the full range of exposure situations from the natural presence of chemicals in the environment to their extraction or synthesis, industrial production, transport use and disposal.

Cardiovascular diseases (CVDs) are often called "silent killers" because heart attacks and strokes are a common first warning sign of an underlying disease. High blood pressure is the most frequent and most important risk factor for CVDs. Its prevalence is estimated to be about 20 million in the African Region.

The most common symptom of coronary artery disease is angina. Angina is often described as a pressure, heaviness, discomfort, aching, burning or a painful feeling in the chest. The symptoms can often be mistaken for indigestion or heartburn.