Your body uses fever as a way to fend off infections. But it also raises your body temperature to at least 98.6°F (37°C). You may also experience associated symptoms like weakness, dehydration, muscle aches and loss of appetite.
Your muscle strength and endurance also diminish. Your precision and coordination are also affected so there's an increased risk of injury.
- Frequent or Productive Cough
While a slight cough isn’t a cause for concern, frequent episodes of coughing with phlegm is another story. You’ll have to skip your workout since you’ll likely have difficulty breathing. You’re also prone to feeling fatigues more easily.
- Vomiting Due to Stomach Flu
A bug in the stomach can lead to symptoms that will make working out off limits for you. You may experience nausea, vomiting, diarrhea, fever, stomach cramping, weakness, and more.
These symptoms can put you at risk of dehydration. What's more, some cases of stomach flu may be contagious so working out in a populated area like a gym is not ideal.