n. Critics of the phrase have associated it with a larger cultural clash termed the "War on Christmas".
"Season's greetings" is a greeting more commonly used as a motto on winter season greeting cards, and in commercial advertisements, than as a spoken phrase. In addition to "Merry Christmas", Victorian Christmas cards bore a variety of salutations, including "compliments of the season" and "Christmas greetings." By the late 19th century, "with the season's greetings" or simply "the season's greetings" began appearing. By the 1920s it had been shortened to "season's greetings," and has been a greeting card fixture ever since. Several White House Christmas cards, including U.S. President Dwight D. Eisenhower's 1955 card, have featured the phrase.
Various studies have been performed on the effects of the Christmas and holiday season, which encompasses several feast days, on health. They have concluded that the health changes that occur during the Christmas and holiday season are not reversed during the rest of the year and have a long-term cumulative effect over a person's life, and that the risks of several medical problems increase during the Christmas and holiday season.
Yanovski et al. investigated the assertion that the average American gains weight over the season. They found that average weight gain over the Christmas and holiday season is around 0.48 kilograms (1.1 lb). They also found that this weight gain is not reversed over the rest of the year, and concluded that this "probably contributes to the increase in body weight that frequently occurs during adulthood" (cf Lent).
Chan et al. investigated the increases in A1C and fasting plasma glucose in type 2 diabetic patients, to see whether these increases were steady throughout the year or varied seasonally. They concluded that the winter holidays did influence the glycemic control of the patients, with the largest increases being during that period, increases that "might not be reversed during the summer and autumn months".
The Christmas and holiday season, according to a survey by the ADA, is the second most popular reason, after birthdays, for sharing food in the workplace. The British Columbia Safety Council states that if proper food safety procedures are not followed, food set out for sharing in the workplace can serve as a breeding ground for bacteria, and recommends that perishable foods (for which it gives pizza, cold cuts, dips, salads, and sandwiches as examples) should not sit out for more than 2 hours.
A survey conducted in 2005 found shopping caused headaches in nearly a quarter of people and sleeplessness in 11 percent.
Phillips et al. investigated whether some or all of the spike in cardiac mortality that occurs during December and January could be ascribed to the Christmas/New Year's holidays rather than to climatic factors. They concluded that the Christmas and holiday season is "a risk factor for cardiac and noncardiac mortality", stating that there are "multiple explanations for this association, including the possibility that holiday-induced delays in seeking treatment play a role in producing the twin holiday spikes".
The Asthma Society of Canada states that the Christmas and holiday season increases exposure to irritants because people spend 90% of their time indoors, and that seasonal decorations in the home introduce additional, further, irritants beyond the ones that exist all year around. It recommends that asthmatics avoid scented candles, for example, recommending either that candles not be lit or that soy or beeswax candles be employed.
According to the Stanford Recycling Center Americans throw away 25% more trash during the Christmas and holiday season than at other times of the year.
Because of the cold weather in the Northern Hemisphere, the Christmas and holiday season (as well as the second half of winter) is a time of increased use of fuel for domestic heating. This has prompted concerns in the United Kingdom about the possibility of a shortage in the domestic gas supply. However, in the event of an exceptionally long cold seaso