Early studies found that recreational exercisers reported fewer colds once they began running regularly. Moderate exercise has been linked to a positive immune system response and a temporary boost in the production of macrophages, the cells that attack bacteria. It is believed that regular, consistent exercise can lead to substantial benefits in immune system health over the long-term.
More recent studies have shown that there are physiological changes in the immune system as a response to exercise. During moderate exercise immune cells circulate through the body more quickly and are better able to kill bacteria and viruses. After exercise ends, the immune system generally returns to normal within a few hours, but consistent, regular exercise seems to make these changes a bit more long-lasting.
According to professor David Nieman, Dr. PH., of Appalachian State University, when moderate exercise is repeated on a near-daily basis there is a cumulative effect that leads to a long-term immune response. His research showed that those who walk at 70-75 percent of their VO2 Max for 40 minutes per day had half as many sick days due to colds or sore throats as those who don't exercise.

However, there is also evidence that too much intense exercise can reduce immunity. This research is showing that more than 90 minutes of high-intensity endurance exercise can make athletes susceptible to illness for up to 72 hours after the exercise session. This is important information for those who compete in longer events such as marathons or triathlons.
Intense exercise seems to cause a temporary decrease in immune system function. Research has found that during intense physical exertion, the body produces certain hormones that temporarily lower immunity.
Cortisol and adrenaline, known as the stress hormones, raise blood pressure and cholesterol levels and suppress the immune system. This effect has been linked to the increased susceptibility to infection in endurance athletes after extreme exercise (such as marathon running or Ironman-distance triathlon training).

If you are already ill, you should be careful about exercising too intensely. Your immune system is already taxed by fighting your infection, and additional stress could undermine your recovery. In general, if you have mild cold symptoms and no fever, light or moderate exercise may help you feel a bit better and actually boost your immune system. Intense exercise will only make things worse and likely extend your illness.

Gazas [2013-11-18 14:16]:
Man atrodo, kad butent todel kiekvienos dietos laikymasis yra pasmerktas zlugti. Juk siaubinga, kai tu nori pvz. antros porcijos, o negalima. Nori pyragelio- negalima. Nori keptu bulviu su grietine- negalima.
Ir tas negalima nesibaigia, jis visada tesiasi kol anksciau ar veliau palusi.

O kai tu begioji. Net jei tas tau labai nepatinka. Tai busena baigtine pvz 3-4 val per savaite ir tu valgyk ka nori ir kiek nori. "Beda" tik, kad valgymo iprotis keiciasi automatiskai, kaip salutinis begiojimo efektas.

Gazas [2013-11-18 13:27]:
Zmogus tobuleja tada, kai bendraudamas siekia issiaskinti kaip veikia jam nesuprantami reiskiniai, o ne stengdamasis juos paneigti.

Gazas [2013-11-18 13:27]:
O begdamas tu pakeli temperatura ir bacilos yra iszudomos dar iki isigalejimo.

Gazas [2013-11-18 15:39]:
Begiojantis zmogus valgo tai ko reikalauja jo organizmas.

artas [2013-11-18 15:56]:


Na ir ko reikalauja nuolat bėgiojančio organizmas ? Energijos. Greičiausiai įsisavinamas (efektyvus) kūras yra greitieji angliavandeniai - cukrus, balti miltai. Jei tai sveiko gyvenimo atributai, tuomet tai dar viena demagogija.