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It starts from the Beginning of Spring and ends with the Greater Cold, moving in cycles.

它从立春开始，以大寒结束，循环往复。

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They are beginning of winter, light snow, heavy snow, winter solstice, lesser cold and greater cold.

它们是：立冬、小雪、大雪、冬至、小寒和大寒。

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People with a sleep efficiency of less than 92 percent had a 5.5-times greater risk of developing a cold than those with a 98 percent or more sleep efficiency.

CNN: Study: Can more sleep help fight off colds?

Many people believe that the only risk of winter weather is getting a cold but the risk is much greater.

BBC: UK shivers in -11C cold snap amid forecasts of snow

Understanding how they reacted to the onset of these cold periods will allow archaeologists a greater insight into the limits of Neanderthal tolerances.

BBC: Neanderthal survival story revealed in Jersey caves