The sed rate test measures the distance red blood cells fall in a test tube in one hour. The farther the red blood cells have descended, the greater the inflammatory response of your immune system.
A woman pulls up her hood as she exits a subway during a snowstorm in New York City, March 5, 2015. Photo: REUTERS/Lucas Jackson. For all practical purposes, winter starts at around the moment your heating fails, forcing you to put on all your ugly Christmas sweaters at the same time. For others, itâs when you slip and fall down a dozen stairs into the subway.
Meteorological winter starts on 1st December. Winter solstice is 21st/22nd December when the sun is at it's weakest. However, due to seasonal lag this is still in the first third of winter generally (look at seasonal lag on wikipedia) and is not the middle of winter at all for that reason.