To stay on top of your game at work, avoid this No. 1 dietary mistake. For your staff to care for others well over the long term, they need to keep their own well-being on the front burner. And sharing a few nutritional strategies and efforts to stay infection-free can help staffers cover two of the major bases. Start by avoiding the No. 1 nutritional habit known to backfire: Skipping meals due to stressful schedules, advises dietician Solution: Examples: Avoid Carb Craving "Stress can make people be hungry and crave carbohydrates," warns Bedwell. The carbs "help release serotonin in the body which helps people relax." A lot of times when people are stressed out and haven't eaten for several hours, "they will binge on simple sugars and starches." Antidotes: Got Headaches? Turn On The Faucet Bedwell also counsels people to drink water throughout the workday. She notes that "dehydration is one of the most common problems in people who work long hours -- and dehydration is the most common cause of headaches." Coffee is OK in moderation, adds Bedwell, noting that research shows that drinking two to three cups a day may provide some benefits. More than that can cause you to become irritable or develop insomnia -- "or even a rapid heartbeat," she cautions. To prevent insomnia, "people doing shift work should limit their coffee drinking to the first half of the shift." The perks: Don't Take Microorganisms Home Taking a few precautions can help you close the door to disease-causing microorganisms -- literally. When nurse Get These Immunizations Caregiving staff should make sure their immunizations are current, urges nurse "Anyone who had a chicken pox titer before 2004 should have it repeated using a current test method," Marx says. "The method used before that date caused false positives, which means someone could think they were protected when they weren't." Staff should also take advantage of hepatitis B and flu vaccinations which employers often give free of charge. In addition, anyone 60 years of age or older should consider having a shingles vaccination. "You can't catch shingles from someone, but if you haven't had chicken pox or a chicken pox vaccination (or if your titer isn't high enough to offer protection), you can catch chicken pox from someone with shingles," says Marx. Staff who are 65 or older should have a pneumococcal vaccination. And staff with risk factors, such as diabetes, COPD, or other chronic disease, also should receive the pneumococcal vaccination, says Marx. And they should receive a second dose after turning 65, if they received the first dose before age 65 -- "and it's been at least five years."