Can a cold turn into the flu?

The answer to whether a cold can turn into the flu is kind of yes and no. The flu virus typically causes a syndrome where you feel like you’re really run down, you have fatigue, you’re muscle aches. Whereas a cold, ah , you usually have just a sneezing, coughing syndrome, but the flu virus can give you a cold-like syndrome. Now, if you do have a cold virus and it goes on long enough and it breaks down your immune system to the point where you’re susceptible to other viruses and bacteria, then you could get a cold and then develop into the flu. But, in terms of a cold virus causing the flu, technically, no.