[austincheney]

Methamphetamine - https://en.wikipedia.org/wiki/Methamphetamine#Addiction

The addictive quality of meth lies in the physical adjustment of neuron pathways in the brain. While the specific gene triggers associated with meth are known and likely specific to this drug the physically addictive pattern is not radically different from other stimulants. Essentially meth stimulates certain specific neuron pathways in the brain. The brain becomes reliant upon the drug for a greater than normal performance in the adjusted neurons. While there are behavioral results from this adjust the changes are to the physiology of the brain. Withdrawal is present when the patient is removed from the drug in a pattern similar to all other stimulants.

Even regular caffeine intake results in physiologic symptoms when consumption is halted.

As for cocaine there are very many reports and research that describe the physiological addition attributed to the drug. This is about as well accepted scientifically as climate change and evolution. There are numerous research examples of red blood cells choosing cocaine attachment over oxygen studied from blood of addicts.

> You may want to do 5 minutes of quick research before writing posts about subjects you are unfamiliar with in such an authoritative tone.

Perhaps instead of attacking people with baseless claims you could point me in the proper direction with research.