A Dr. John Preston, PsyD, Psychology, answered. The average age of onset for bipolar disorder is 23, although late-adolescent onset is fairly common. Bipolar disorder can occur as early as 6 years old or as late as 50. Dr. John Preston, PsyD, Psychology, answered. The average age of onset for bipolar disorder is 23, although late-adolescent onset is fairly common. Bipolar disorder can occur as early as 6 years old or as late as 50.
John Richard Schneider III. John Richard Schneider III (born April 8, 1960) is an American actor and singer. He is best known for his portrayal of Bo Duke in the 1980s American television series The Dukes of Hazzard, and as Jonathan Kent on Smallville, a 2001 television adaptation of Superman.
$4 Million. John Schneider net worth: John Schneider is an American actor and country singer who has a net worth of $4 million.Schneider gained his net worth from starring in The Dukes of Hazzard as Bo Duke. A born entertainer, Schneider started performing at the age of eight, appearing in magic show for friends and their family.ohn Schneider net worth: John Schneider is an American actor and country singer who has a net worth of $4 million.