The virus responsible for infectious mononucleosis (commonly known as mono) affects about 90 percent of the population worldwide, and most commonly strikes teenagers and young adults ages 15 to 30. Knowing what symptoms to look for can help catch the virus—and put you on the path to recovery—sooner.

8 Reasons You’re Always Cold
Certain medical conditions can cause your hands and feet to always feel chilled. As anyone who has worked in a shared office space can tell you, people have different body