Illustration: Michael Klein for Newsweek

For families, fall marks the start of germ-fighting season. Kids catch an average of one to two colds per month during the school year; parents catch fewer but suffer just as much. Mom and Dad miss work to care for their children, then end up missing more work once they catch what their kids brought home. And the cycle begins again. A series of runny noses and fevers may not land anyone in the hospital, but it can take a serious toll on productivity.

What are the best strategies for staying healthy during the cold-weather months? We all know that washing hands regularly and getting the flu shot are good places to start, though there is new information on those recommendations, as well. The Centers for Disease Control and Prevention now says all kids, ages 6 months to 18 years, should get the flu shot (previously, the recommendation had extended only to kids younger than 5), and doctors agree that you need to scrub and rinse your hands for at least 20 seconds in order to kill germs most effectively.

What about less scientific-sounding advice like wearing a sweater and chugging orange juice? TIP SHEET looked at the new thinking on some old wives’ tales.

• Wear a hat. True. Mom always said to bundle up before leaving the house, and it turns out she was right. If you’re dressed inappropriately, your core body temperature can drop, and that can lower your immune system’s function, says Dr. Ted Epperly, president of the American Academy of Family Physicians. Your body loses the most heat through your head, but wearing gloves or mittens will also help.

October 13, 2008 

Fewer Americans are buying organic. The number of people who regularly consume organic food and drinks dropped from 25 percent to 22 percent in the last year, according to a new report from consultant NPD Group. With the economy in the dumps, who can blame them? If you’re concerned about pesticides and added growth hormones but want to save money on groceries, knowing which conventionally grown items are highest in contaminants will help you prioritize.

• Milk. If you or your kids are big milk drinkers, it pays to buy organic. “There are so many hormones and antibiotics [in many brands of conventional milk],” says environmental activist Deirdre Imus, author of the “Green This!” series. Some studies have found organic milk to have higher levels of healthy fats and antioxidants, such as beta carotene.

A new study says Medicare patients prefer cheap generic drugs only when they’re footing the bill themselves—when government pays, they want brand names. Recent news may shed some light on why: the FDA is investigating reports of faulty generic Wellbutrin, and last month it banned 28 generics made in India. If you’re taking a generic, should you switch to a brand name? Probably not. All generics, prescription or over-the-counter, go through a rigorous approval process. Generics are supposed to be “bioequivalent” to their costlier cousins (their active ingredients are equal in dose, safety, strength and efficacy). Although their inactive ingredients (such as flavors and dyes) differ, it’s very rare for those to cause reactions. Generics made in the United States are manufactured under the same standards as brand names. But the FDA has no authority to oversee those made abroad. (India and China make about a fifth of the generics sold here.) The agency’s only option is to ban those drugs and demand manufacturing upgrades, as it did last month. It also assured consumers there’s “no evidence of harm” from what’s already on the market.

See “Dialogue Among Giants: Carleton Watkins and the Rise of Photography in California.” This exhibition of approximately 150 works by Watkins (who became the official photographer of the California State Geological Survey) captures the social, political, economic and artistic developments in California as it reached statehood in 1850 through the mid-1880s (through March 1, 2009; getty.edu).

Rent “Le Doulos.” Is JeanPaul Belmondo a crook or a police informant? In Jean-Pierre Melville’s tough, tricky, fatalistic 1964 film noir classic, nothing is as it appears to be, and the twists come as fast as a speeding Citroën on a rainy Paris street.

Hear “Only by the Night” by Kings of Leon. These Southerners have executed a fourth album that stays true to their hard-rock edge yet interjects raspy wails and guitar riffs with sweeping mellow tracks you’ll be singing in your head. Try: “Closer.”

Shop Target starting Sunday for the debut of its line of Anya Hindmarch handbags ($19.99 to $49.99) and Sigerson Morrison shoes ($29.99 to $39.99).

Get away for Columbus Day. Check smartertravel.com for a review of last-minute deals, including early-season ski trips, Oktoberfests and spas.