sick

Take a day off if you have puked or have had a fever. What kind of sick are you? 24 hour flu? physically draining or mentally draining?...... When I got sick 3 days before a half mary, i just got a lot of rest and made sure to stretch while laying in bed...... i dont know how i ever completed it, i had eaten only like 1000 calories total in 3 days from it....then somehow yogurt-loaded before it and finished 'er...then a long bike ride after if i remember correctly.

Your body is capable of anything...... just eat a little extra healthy the next few days.

How old are you?

There is nothing to support this.  It's a piece of "common wisdom" that just gets passed from person to person without any basis for it.

There are no hard and fast rules about training while you're sick.  If you feel like you need to rest, then just do it.

Well the unwarranted insult aside, I'll say that you're posting about a very specific condition that is rarely the cause of people's illnesses.  It's like telling people with sniffles and a cough that they might have lung cancer.  You can live your life in a bubble hoping you don't have relatively rare diseases, or you can live in reality where common things are common.

 I'd say that really depends on how sick you are.  If you have a mild case of the sinus congestion or running, I'd say it's ok, just load up on the Vitamin C and get adequate sleep.  Now, if it progresses or your body is already feeling weak, I don't think you'd have much of a workout anyway, so might as well stay in bed.  If you are feeling chills or are having trouble keeping things down, loss of appetite, that's probably another good idea that you should rest instead too.

It's the same advice that is passed around from person to person without factual evidence to back it up.  It's not an original thought or opinion from the poster in question.  That is common wisdom and like much information passed along in such a fashion, it's tenuous as best and wrong at worst.

The last sentence is a specific assertion if you were wondering.  It's not "you could" or "you might".  It is "you will".  There is no basis for such an assertion.

I don't post to these threads to argue, but I will post factual information or refute posts that give out medical advice that is contrary to fact.

I've elaborated on this in the past as have a few other docs around here.  You won't find studies or research because it's not an issue.  There aren't hard and fast processes that are strictly "below the neck" or "above the neck" and there are innumerable exceptions to the "rule".  Where is a fever?  Where is a cough?  If the rule has too many exceptions, it's not really much of a rule or guideline to base things on.

You can certainly make yourself by training through some illnesses.  The beauty of the human body is that we have natural defense mechanisms for keeping us from doing that.  Feeling bad is a sign that you should be resting.  There aren't any more elegant ways of saying that.  

My general rule is simple.  Train if you feel up to it.  Rest if not.  Err on the side of resting.