The origins of the Mass Rapid Transit (MRT) are derived from a forecast by city planners in 1967 which stated the need for a rail-based urban transport system by 1992.he lines are built by the Land Transport Authority, a statutory board of the Government of Singapore, which allocates operating concessions to the profit-based corporations, SMRT Corporation and SBS Transit. These operators also run bus and taxi services, thus facilitating full integration of public transport services.
A silent heart attack is a heart attack that happens without causing noticeable symptomsâor at least, without causing symptoms so severe that the victim cannot ignore them. Most of us tend to think about a myocardial infarction (heart attack) as a pretty dramatic eventâand most of the time, it is.
8 Pieces of Heartfelt Advice From Cardiologists. Cardiovascular disease is known as the silent killerâespecially for women. It takes the lives of roughly one million Americans every single year, which equals approximately 1 in 4 deaths (more than half are female). Heart disease is considered a silent killer because it often doesnât display telltale symptoms like cancer or lung disease. And many individuals who donât have their cholesterol and blood pressure checked regularly succumb to heart attack without ever realizing they ever had a health issue.