There are many articles on hemp and its uses number in the many hundreds.
Also, the detrimental effects from its recreational use are overplayed as these so called effects emerged when its use was being removed from western society (propagandised).
I would hazard a guess that amino-acid, mineral and vitamin deficiency that go hand in hand with standard western diet have more to do with health detriment than the use of hemp recreationally. Alcohol and tobacco being legal raises eyebrows and questions!
Henry Fords almost exclusive use of hemp for an brief period is another well documented point of departure as hemp is more prolific, versatile, resilient and productive than virtually any other tree or plant.
In all a good plant that has many uses and is illegal in europe save for portugal and the dutch turn a blind eye to its use and these countries also have the least drug related problemsin europe.