Top tips to outsmart your headache


Colds and flu are both illnesses caused by viruses. Through laboratory research, scientists have found three different viruses that can cause flu, but over 200 different viruses that can cause a cold - sometimes referred to as a "common cold". Colds and flu can affect all ages, from babies to the elderly.
Without the help of scientific laboratory tests, it can sometimes be very difficult to tell which is which. This is because, although their symptoms do have some differences, there are a lot of similarities too. So let's take a look at them:
Cold symptoms | Flu symptoms |
Runny nose - with clear mucus at first then thicker, green mucus as the cold progresses | Fever - that may come on suddenly - body temperature can go up to 37.8-40⁰C (100-104⁰F) |
Blocked nose | Sweating |
Cough | Cough - a dry, chesty cough |
Sneezing | Extreme tiredness or exhaustion. Sufferers may feel the need to lie down and rest |
Sore throat | Runny nose, sneezing |
Fever, tiredness, muscles aches | A headache |
A headache |
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One other key difference is the impact of seasonality. While Flu tends to be seasonal - during the winter months, Colds can be experienced throughout the year. The reason for this is that flu viruses need different conditions to survive and multiply compared with cold viruses. Also, Flu viruses seem to survive longer in dry, cold, winter air.
Since you may not get all the symptoms at the same time, and also because you can suffer the symptoms to different degrees, telling the colds and flu apart can become even more challenging. For example, colds may be called "mild" or "heavy" colds and a heavy cold may feel more like flu. In children and the elderly it is important to recognise the flu as these people are at more at risk of complications compared to the rest of the population.