3 weeks ago

Doctor Explains Why Exercising With A Fever Is Not Recommended

Your body uses a fever to fight germs that make you sick.

When you have a fever, your body needs lots of energy to get better.

Exercise also uses energy, so doing both at the same time can be too much.

Doctors have a special rule called the 'neck rule.'

If your symptoms are only above the neck, like a runny nose, light movement might be okay.

But if you have a fever, body aches, or chills, you should rest instead.

Exercising with a fever can make you even hotter and can make you lose too much water.

That can make you feel dizzy and weak.

You should wait until you have been without a fever for one whole day before exercising again.

It is better to rest and get better than to push yourself too hard.

Key facts

Medical expert: Dr Niraj Kumar, Senior Consultant, Internal Medicine, ShardaCare-HealthCity
Meaning of fever: A sign the body is fighting an infection caused by viruses, bacteria, or other germs
Neck rule: Above-the-neck symptoms (runny nose, mild sore throat, nasal congestion) may allow light activity if you feel well enough
Symptoms requiring rest: Fever, body aches, chills, fatigue, chest congestion, persistent cough, vomiting, diarrhoea
Key risks of exercising with fever: Higher body temperature, overheating, dizziness, dehydration, delayed recovery, rare myocarditis
Return-to-exercise rule: Fever-free for at least 24 hours without fever-reducing medicines, normal energy levels, and significantly improved symptoms
When to see a doctor: Fever over 39 degrees Celsius or lasting longer than 2-3 days, difficulty breathing, severe chest pain, confusion, persistent vomiting, or extreme weakness
Restart advice: Begin with low-intensity activities like walking, easy cycling, or light stretching and increase gradually over several days

NDTV · 3 weeks ago