Diseases, Conditions, Syndromes

Historical coronaviruses show evidence of seasonality and immunity

Using historical data, a UCL research team has found that levels of infection from three common coronaviruses appear to have followed a seasonal pattern in England, with peaks occurring during winter and broadly at the same ...

Psychology & Psychiatry

Darkness begone! Lights ward off Nordic winter blues

Each year, Old Man Winter drops his curtain of darkness over the Nordic countries, not lifting it again until April when spring bathes the region in sunlight and nature comes back to life.

Medical research

A cheaper, high-performance prosthetic knee

In the last two decades, prosthetic limb technology has grown by leaps and bounds. Today, the most advanced prostheses incorporate microprocessors that work with onboard gyroscopes, accelerometers, and hydraulics to enable ...

Health

Why your period symptoms might be worse in the winter

Period symptoms are frustrating no matter the time of year. But those who menstruate might feel like certain symptoms are worse during the winter months, when the weather is gloomy, the days are short and cold and flu seem ...

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Winter

Winter is one of the four seasons of temperate zones. Winter officially begins on the winter solstice, being the day of the year which has fewest hours of daylight. Winter ends, and spring begins, on the following equinox. In the Northern Hemisphere, depending on the year, this corresponds to the period between December 20 and 21 and March 20 or 21. Winter is the season between autumn and spring. In many countries in the Southern Hemisphere, including Australia , New Zealand and South Africa, winter begins on 1 June and ends on 31 August.

From a meteorological perspective, winter is the season with the shortest days and the lowest average temperatures. It has colder weather and, especially in the higher latitudes or altitudes, snow and ice. The coldest average temperatures of the season are typically experienced in January in the Northern Hemisphere and in June or July in the Southern Hemisphere.

This text uses material from Wikipedia, licensed under CC BY-SA