The common cold is commonest in winter because the harsh weather prompts people to stay indoor, as such ventilation is restricted & the chances to infect friends & family members is increased.
Make sure you wash your hands regularly because
Colds spread when you blow,
Wipe or sneeze the virus from your nose to another.
There is no conclusive evidence that cold temperature increases our chances of catching one of 200-Plus Viruses that cause the infection. Although a weakened immune system will increase the virus’s chance of survival. Studies have shown that temperature does not affect immune system strenght.
So it would be wise to wash your hands each time you blow – wipe or sneeze the 200- plus virus from your nose before attending to any domestic activity that connects you to loved ones so as to check the chances of infecting them.