By Jeffrey Perkel
HealthDay Reporter

WEDNESDAY, June 25 (HealthDay News) -- Canadian researchers report that a gene variant that seems to affect the severity of attention-deficit hyperactivity disorder did not help them predict which patients are likely to respond to a class of drugs widely used to treat the disorder.

The lack of a connection between the variant and response to methylphenidates was a blow for researchers, who have hoped to use genetic data to better predict who might be the best candidates for this treatment. Ritalin is one example of a methylphenidate.

Friends and Colleagues,

We are facing serious health freedom consequences in the US that have not been mentioned during the nightly news.  Please take a moment to look at the attached Health Freedom Alert regarding vaccinations which will, for the first time in US history, make infant and toddler vaccinations MANDATORY.   I have researched the rise in number of infant thru 12 year old vaccinations over recent years.  The numbers are staggering.  

WASHINGTON - When "Fidgety Philip" grows up, the problems of attention deficit disorder can multiply into loss of nearly a month's work per year.

Long seen as a problem for children, attention deficit hyperactivity disorder was first described in 1845 by Dr. Heinrich Hoffman, who wrote "The Story of Fidgety Philip."

More recently, it has been recognized as continuing into adulthood for some people, and new research seeks to estimate the effect of ADHD on workers.

WASHINGTON (AP)- Depression, teens and marijuana are a dangerous mix that can lead to dependency, mental illness or suicidal thoughts, according to a White House report being released Friday.

A teen who has been depressed at some point in the past year is more than twice as likely to have used marijuana as teens who have not reported being depressed — 25 percent compared with 12 percent, said the report by the White House Office of National Drug Control Policy.

THURSDAY, May 8 (HealthDay News) -- Serious mental illness costs Americans at least $193 billion a year in lost earnings alone, a new report shows.

The study broadly defines mood and anxiety disorders that greatly limit a person's ability to function for at least 30 days a year, including instances of any condition linked to suicidal behaviors or frequent violent acts, as serious mental illness (SMI).