Got the Flu? Rest First, Exercise Later, Experts Say 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 on
Exercise. 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 r