View a detailed animation of ischemic stroke. Ischemic strokes occur as a result of an obstruction within a blood vessel supplying blood to the brain. The underlying condition for this type of obstruction is the development of fatty deposits lining the vessel walls. This condition is called atherosclerosis. These fatty deposits can cause two types of obstruction:
Currently observing EST â Eastern Standard Time. Observes EST â Eastern Standard Time part of the year, but not currently. Currently has same time zone offset as EST (UTC -5) but different time zone name. Eastern Standard Time (EST) is 5 hours behind Coordinated Universal Time. This time zone is in use during standard time in: North America, Caribbean, Central America. This time zone is often called Eastern Time Zone. See full time zone map.
There is the Eastern time zone, the Central time zone, the Mountain time zone, and the Pacific time zone in the United States. Each of these time zones is split up geographically in order to better suit the areas that are receiving light at certain hours. The Eastern time zone is one hour ahead of the Central time zone. So if it is 8:00 p.m. in the Eastern time zone, it is 7:00 p.m. in the Central time zone. The Eastern time zone runs along the eastern seaboard of the United States including all the states that touch the Atlantic ocean.