Ramona Croger4 apr. 20201 min9 tips for a strong immune system - Part 44. Avoid heavy exertion Have you ever heard of the open window phenomenon? During excessive physical exertion - such as when running a ma
Ramona Croger4 apr. 20201 min9 tips for a strong immune system - Part 3Running, swimming, cycling: the classic endurance sports are still one of the most effective endurance sports. They not only strengthen the