-- Mary Elizabeth Dallas
TUESDAY, Jan. 22 (HealthDay News) -- Although regular exercise
has been linked to a strong immune system, people with flu
symptoms, such as fever, extreme tiredness, muscle aches and
swollen lymph glands, should avoid physical exertion while sick and
for two weeks after they recover, according to the American Council
With the United States battling widespread flu activity, the
council issued guidelines for athletes and others who exercise
regularly. Above all else, flu sufferers should get plenty of rest,
the group said in a news release.
Endurance athletes, including marathon runners and triathletes,
need to be extra careful, the council added. For 72 hours after a
90-minute, high-intensity endurance workout, these athletes may be
vulnerable to illness. Intense workout routines temporarily elevate
levels of the hormones cortisol and adrenaline, which lowers
immunity, the experts explained.
For people with symptoms of the common cold, such as runny nose,
headache and mild cough, moderate exercise such as walking is
considered safe. The group noted, however, that it's a good idea
for people with a cold to listen to their body and reduce the
intensity of their workout until their symptoms are gone.
Anyone with a cold should avoid working out at a gym or in a
group environment to reduce the risk of spreading their illness to
others, the council said.
The U.S. Centers for Disease Control and Prevention provides
more information on
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