Justin Timberlake says his recently diagnosed Lyme disease causes him nerve pain and excessive fatigue. Understanding the disease and its cause can keep you safe this summer.

A family source tells PEOPLE that the Grammy winner's diagnosis has "brought clarity to a series of unexplained issues" as Biel has been "incredibly supportive"

There is no vaccine for Lyme Disease, but it is treatable and curable with the help of antibiotics, especially when diagnosed early. It usually takes 10 to 14 days to cure.