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20%
of Americans say their top incentive for oral hygiene is preventing bad breath. -- Impulse Research Corporation
Stress and the Flu
When people get a flu shot, their levels of stress and sleep during the next several days will influence the amount of protection they receive. Gregory E. Miller, a psychologist at the University of British Columbia, headed a study that monitored 83 healthy men and women after flu vaccines, measuring their bodies' immune responses and frequently questioning them about their mental state, sleep, and activities. The people who reported the highest cumulative stress levels between two and ten days after the injection produced 12 to 17 percent fewer protective antibodies to the vaccine compared with groups reporting moderate or low stress levels at this time. While smoking, drinking, and exercising did not seem to contribute to vulnerability, the amount of sleep the participants received did -- most likely because stress and compromised sleep tend to occur together, the researchers say. Although the study suggests that scheduling a flu vaccine before a high-stress period could decrease its effectiveness, stress levels two days before and the day of the injection had no effect on the results.
Bad-Breath Test
A self-test developed for halitophobes -- people with an irrational fear of mouth odor -- could be useful for others as well. A person ...