Reports of critical illness due to 2009 H1N1 influenza during summer months in the Northern Hemisphere contain insufficient data to provide reliable estimates of the burden of critical illness to be likely during wintertime in the Northern Hemisphere.3-9 Although the successful deployment of a effective and safe vaccine may modify the burden of disease,10,11 population-based data from Australia and New Zealand can currently provide a reasonable estimate of the likely effect of 2009 H1N1 influenza during the Northern Hemisphere winter.4. Avoid overtraining The only way you can be able to know whether you possess over trained is certainly by understanding how to distinguish between muscles ache and a muscle burn. There are several those who have mistaken the two and finished up pushing there muscle groups beyond its limits. The resultant impact is a muscle tear that could cause a lot of pain and discomfort. 5. Train inside your limits Do not try to impress anyone or to contend with anyone as this may seriously put you vulnerable to getting gym accidental injuries.