Ririan project offers 4 advices (called easy lifestyles) to avoid to get a cold. It’s really relevant during winter. I reproduced the 4 easy lifestyle below:

1: Start your day with the antiviral breakfast: They suggest to take a big breakfast: 1200 calories with oatmael, bananas, eggs, jam, orange juice,etc.

2: Get your head down and get some quality sleep: Sleep more to improve your immune system and Wear light clothes at home.

3: Work out your white blood cells: As exercise stregthen the immune system, the advice is to practice 60 to 90 min of moderate activity.

4: Strike back with some stress: Short-term stress is supposed to improve level of SIgA, a key immune-system protein. The advice is to expose yourseff to some short term stress.