It could be that your house is too cold, or there is something in the air that makes you sick.
Hope that helps :)
Answer:
A stretching your legs before a run
The answer is false. Proteins have about 9 jobs and their biggest task is building tissues and muscles. They also do things such as hormone and enzyme production, immune function, provide energy, cause biochemical reactions, relays as a messenger in the body, etc.
The answer is diet, or lifestyle but I recommend diet more