Avoid exercise if you have a temperature over 100f (37.8c) or if you have any signs of fever. [substeps] A fever is your body's way of fighting infection, and is telling you that you need rest.
[header] How to determine if you are too sick to work out [title] Forgo your workout if you have a fever. [step] Physical signs of fever include sweating and chills, body aches, headache, fatigue or weakness, low appetite, and your skin feeling warm to the touch. Take your temperature at home.