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.
A panic attack is a rush of intense anxiety and physical symptoms. They can be frightening and happen suddenly, often for no clear reason. Signs of a panic attack. Some people think they are having a heart attack because it feels like their heart is beating fast or irregularly, or even that they are going to die. Panic attacks usually last somewhere from 5 to 20 minutes.