Here's how to care for an aloe vera of your own. About This Plant. There are hundreds of varieties of aloe plants, which are indigenous to Africa and a few neighboring areas. Aloes come in many varieties that range in size from a few inches to tree heights of 30 to 40 feet, in the case of the kokerboom (or quiver tree).
Marijuana smoke smoke contains a similar range of harmful chemicals to that of tobacco smoke (including bronchial irritants, tumor promoters and carcinogens) (Hoffmann et al, 1975).
Chemicals within cannabis have powerful antioxidant properties, and scientists believe this can protect the brain from damage. Too much alcohol can lead to permanent brain damage, among other things. A recent study from the University of Kentucky and the University of Maryland concluded that a chemical in marijuana called cannabidiol (CBD) could be used to prevent alcohol-induced brain damage.