''The process by which Alzheimer’s affects the brain is due to plaques, which are caused by excessive concentrations of the Amyloid Beta protein in the brain. These proteins are sticky, and clump together. As they build up, they disrupt cellular communication, eventually causing neural pathways to breakdown. This results in loss of memory, difficulty in problem solving, and general confusion.

THC has been proven to stop this process by blocking the acetylcholinesterase (AChE) enzyme, which catalyses amino acids into the plaque proteins. In addition to being an effective amyloid inhibitor, THC helps neural cells stay healthy and protects them against damage.

Because the use of THC actually helps prevent and even treat Alzheimer’s, smoking from aluminium foil would be mitigated by what is being smoked.

Perhaps you’re worried that the short-term memory loss, confusion and paranoia are due to the aluminium? It’s not likely. Aluminium is a fairly reactive metal and on exposure to the atmosphere it quickly forms a surface layer of aluminium oxide, which protects the underlying metal from further reaction. Any aluminium that winds up in the smoke would be in the form of this oxide.

There is little data on aluminium oxide toxicity, but it appears to be about as toxic as other fine particulates. Additionally, a number of recent studies have indicated that the proposed link between Alzheimer’s disease and aluminium is weak or nonexistent.''