It happens every year. You feel miserable — congested, weak, aching head and body. You caught some bug, but how do you know if it’s a cold or the flu?
It’s easy to confuse a cold and influenza because they are both respiratory illnesses with similar symptoms. In general, colds are usually milder than flu and in most cases don’t cause serious health problems. In comparison, the flu can lead to serious complications and even death — especially in seniors, babies and people with compromised immune systems.