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"

Many celebrities, including Justin Timberlake, allegedly contracted Lyme disease; here's the symptoms and best ways to treat it.

As pop star Justin Timberlake concluded his world tour earlier this week, the “SexyBack” singer shared on Thursday in a social media post that he has been grappling with health issues and a diagnosis of Lyme disease.