<center><iframe width="750" height="385" src="https://www.youtube.com/embed/npfHlSbNdxA" frameborder="0" allowfullscreen></iframe> <br>Typical CBD levels reduced from 0. 28% in 2001 to less than 0. 15% in 2014. Marijuana and hemp plants contain both CBD and THC in addition to more than ...</center>