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Can feasting during Christmas make you gain weight? Here are some holiday truths and myths

Can eating raw cookie dough make you sick? Do the holidays make people feel depressed? Here’s what research says about various aspects of the holiday season.

fitness Updated: Dec 21, 2017 15:40 IST
Associated Press
Christmas,Dough,Snowflakes
An extra piece of pie or one gigantic holiday feast won’t doom you.(Shutterstock)

Are poinsettias really poisonous? Are snowflakes really as pure as the driven snow? Does feasting really put on the pounds? Sure as sugarplums, myths and misconceptions pop up every holiday season. Here’s what science says about some of them:

Flower power

Poinsettias, those showy holiday plants with red and green foliage, are not nearly as harmful as a persistent myth says. Mild rashes from touching the plants or nausea from chewing or eating the leaves may occur but they aren’t deadly, for humans or their pets. Poinsettias belong to the same botanical family as rubber plants that produce latex, so some skin rashes occur in people allergic to latex. According to a Western Journal of Emergency Medicine research review, the plants’ toxic reputation “stems from a single unconfirmed death of a 2-year-old in Hawaii in 1919.”

Dr Rachel Vreeman, an Indiana University pediatrician who has researched holiday myths, cited a study on more than 20,000 poison control centre reports involving contact with poinsettias. “In none of those cases were there deaths or serious injury. In fact, more than 95% of them required zero medical care,” she said. The anglicised name comes from Joel Poinsett, a 19th century US diplomat who brought the plant back from Mexico.

Holiday blues are a real thing for many people grieving loss or absence of a loved one. (Shutterstock)

Moody blues

The same things that can make holidays merry — great expectations and family time — can also be stressful. Holiday blues are a real thing for many people grieving loss or absence of a loved one, and wintertime can trigger true but transient depression in some people, a condition sometimes called seasonal affective disorder. It’s linked with lack of sunlight in winter and some scientists think affected people overproduce the sleep-regulating hormone melatonin. Research suggests it affects about 6% of the US population and rates are higher in Scandinavia. But contrary to popular belief, suicides peak in springtime, not winter. No one has figured out why.

The white stuff

To form snowflakes, moisture high in the atmosphere is frozen by clinging to particles that may include dust specks or soot. Add germs to that list. University of Florida microbiologist Brent Christner has found that bacteria commonly found on plants are surprisingly abundant ice “nucleators” present in snow from populated areas, barren mountain peaks and even Antarctica.

So is catching snowflakes on your tongue a bad idea? “There’s a yuck factor,” Christner said. “It’s better than yellow snow.” He said the number of bacteria in snow would probably be about 100-fold less than in the same amount of bottled water. “There are a lot more things to be worried about in making you sick than ingesting snowflakes,” he said.

Alcohol is dehydrating so replenishing with lots of water or other non-alcoholic drinks can help relieve the symptoms. (Shutterstock)

Hair of the dog

Forget that Bloody Mary. If extra shots of bourbon in your eggnog have you feeling lousy the next day, drinking more alcohol — hair of the dog — won’t cure you. Here’s what George Koob, director of the National Institute on Alcohol Abuse and Alcoholism, has to say about that: “You are in a sense self-medicating a mild withdrawal syndrome by drinking more. The problem is that’s going to wear off and you’re going to have an even worse hangover.”

Alcohol is dehydrating so replenishing with lots of water or other non-alcoholic drinks can help relieve the symptoms. But experts emphasise that prevention is the healthiest cure. Says Koob: “It all boils down to, don’t drink too much.” So what about that saying, “hair of the dog”? According to an old folk remedy, a dog bite could be cured by putting the animal’s hair in the wound.

Doughn’t eat it

Bakers beware: sampling holiday cookie dough, or any raw dough, can make you sick. And recent research says it’s not just because dough often contains raw eggs, which may harbour salmonella bacteria. Flour is another culprit. A study published last month in the New England Journal of Medicine details a 2016 E. coli outbreak that hit dozens of people in 24 states that was linked with flour. Some patients had eaten or handled raw dough made with flour contaminated with that bacteria. Authorities recalled 10 million pounds of flour, some of which had been sold to restaurants that allow children to play with raw dough while waiting for their meals. Baking generally kills any bacteria. A headline on a Food and Drug Administration consumer update sums up the agency’s advice: Raw dough’s a raw deal.

The bottom line

The truth about holiday weight gain depends on whether your Champagne glass is half empty or half full. An extra piece of pie or one gigantic holiday feast won’t doom you, says Indiana University’s Vreeman. The problem, she says, is that the extra pound or two at holiday time becomes a pattern year after year and adds up.

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First Published: Dec 21, 2017 15:40 IST