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Colds are the most common type of illness for people under the age of 20. This means that the average person will come down with a cold at least two times over the course of their lifetime.

Colds are caused by viruses and can be either mild or severe, leading to fatigue, sore throat, cough, fever, and congestion. Colds can also make your throat red and cause watery eyes.

The best way to limit the spread of colds is by having a strong immune system. Here are 10 ways to improve your immune system and limit colds:

Get a Good Night’s Sleep

It may seem like the last thing you want to do when you’re feeling sick, but getting a good night’s sleep is really beneficial for your immune system. Try to stay in bed for as long as possible, and avoid doing anything that might make you more tired or dehydrated.

You also want to make sure you’re getting enough Vitamin D and E by eating foods that contain these vitamins, such as milk products and eggs. Lastly, be sure to wash your hands frequently.

Eat Lots of Vitamin C-Rich Foods

Vitamin C is an essential nutrient that helps the body and immune system fight off illnesses. Foods rich in vitamin C, such as oranges, strawberries, broccoli and peppers, will help to keep your immune system strong.