An expert at the LMU Munich recommends structuring your day despite illness. Don't neglect personal hygiene in the morning, pursue a hobby in the afternoon, and make phone calls in the evening.

brushing your teeth is particularly important when you have a cold because the weakened immune system makes it easier for bacteria to multiply in the mouth. When you sleep, the body regenerates itself, and the immune system also benefits - on a large scale. The activity of the so-called T cells decreases after just three hours without sleep. These are white blood cells that are responsible for fighting pathogens. The immune system is busy enough fighting the infection, so don't keep yourself awake artificially either. It's important not to overexert yourself and don't do anything that will further weaken your body - it's busy enough.Fighting a cold can cause tonsillitis, which is an infection of the tonsils and adenoids. It can also lead to pneumonia, which can be fatal if it is left untreated.