It can cause you to do things that don’t make sense. Using cocaine for a long time will lead to strong cravings for the drug. A growing number of states have legalized the medical uses of marijuana.

Yet poppy seeds aren’t the only thing that can skew a rapid drug test. “There’s a wide range of things that can cause false positive results,” says Gwen McMillin, a toxicologist and ...

Unfortunately, substance abuse causes side effects and in the long run worsens the very symptoms they initially numbed or relieved. When you have both a mental health issue and a substance abuse ...