Nothing can bring a bodybuilder's progress to a halt more than when you are sick. I am often asked the question, should I continue performing my bodybuilding training routines while I am sick? The answer to that question really depends on what you mean by sick. Is it a cold? The flu? Allergies? Most people confuse the common cold for the flu. However, these are different types of illnesses. The flu is caused by viruses known as Influenza A or Influenza B, while the common cold is caused by viruses called coronaviruses and rhinoviruses. There are over 200 different types of coronaviruses and rhinoviruses. If one of them hits you, your immune system builds a lifelong immunity to it (therefore, the same virus will never hit you twice). However, you have the rest of the viruses that have not yet affected you to worry about; and there are enough to last a lifetime.
The flu, as you may have already found out by experience, is much more severe as it is usually accompanied by an array of body aches and fever. Therefore, your body’s immune system is taxed much more by the flu than by the common cold. At this time, bodybuilding training would not only be detrimental to muscle growth, but it would also to your health as well. Remember that while training can help us gain muscle, lose fat, feel good and energetic, it is still a catabolic activity. The body needs to be in good health in order to go from the catabolic state caused by the exercise to an anabolic state of recuperation and muscle growth. So if you have the flu, your body is already fighting a catabolic state caused by the Influenza virus. In this case, weight training would only add more catabolism, which in turn would negatively affect the efficacy of the immune system against the virus, causing you to get sicker. Therefore, absolutely no training if you have the flu. Instead, concentrate on very good nutrition and on drinking large amounts of fluids (water and electrolyte replacement drinks like Gatorade in order to prevent dehydration). Once the flu completely runs its course, you can slowly start up back on your weight training program with lighter weights and not going to failure. Don’t push yourself too hard during this first week. The next week you’ll repeat what you did on the previous week again, but pushing yourself closer to muscular failure. By the third week of your program you should be back on track.
If it is the common cold that is hitting you and the particular virus is mild (you know that it is mild when your symptoms are just a runny nose and slight coughing), you may get away with training as long as you stop the sets short of reaching muscular failure and you decrease the weights poundages by 25 percent (divide the weights that you usually use by 4 and that will give you the amount of weight that you need to take off the bar) in order to prevent you from pushing too hard. Again, if the cold virus is causing you to feel run down, achy, with a sore throat and headaches, it would be best to stop training all together, until the symptoms subside. If this is the case, just follow the exercise program start-up recommendations described above for after the flu. Remember that we do not want to make it any harder for the immune system to fight the virus by introducing more catabolic activity, so intense training is out during that time.
If your ailment is something other than the common cold or the flu, consult your doctor.
Now that we have seen how a flu or a cold can throw a wrench into your progress, lets see how we can prevent these buggers from affecting us during the flu season or during any other season for that matter.