Does marijuana use lower your IQ in the long-term?
There is no logical proof that cannabis kills brain cells, nor does it regenerate brain cells, only on the basis that research on cannabis hasn't taken a shining too. All I can say is, a large majority of the stuff you hear from the government is funded by falsely proven tests done on chimpanzees. The test was done with 63 100% Columbian strength joints pumped through a gas mask within 5 minutes every day, over 3 months. No sufficient oxygen, you see my point? :) I've been smoking for years, and my intellect has only changed it's variation and spectrum of thinking. If anything, I've gained intellect through a different visualization, but other than that. Nothing has changed.
Does smoking weed make you lose weight ?
So I have been smoking weed almost everyday for the last year. I went from 146 to 132 and I'm starting to think it's because of marijuana. Family and Friends can actually notice that I've lost weight without even trying. It's pretty awkward because marijuana gives you the munchies and I'm always eating but when I'm not high I don't really have an appetite . Basically I just want to know, if I stop will I gain my weight back ?
Can the long term effects of marijuana be reversed? (Problem solving abilities and memory loss)?
This depends on various factors. If the heavy smoking began and ended as an adult, perhaps even late teens, the effects may be entirely reversible within months. However, if heavy smoking began in childhood, or they were heavily exposed prenatally, it may be impossible to ever fully complete stalled growth; similarly, if only stopped once elderly, the brain and body in general is much less flexible and unlikely to heal completely (as age is causing mental deterioration anyway). Childhood dependence on cannabis also creates a much higher risk of lifelong psychosis. Nonetheless, quitting will restore significant lost function.Light use shows no ill effects, and simply going from heavy to light use will also begin restoring cognitive ability.Several relevant studies:Neurocognitive consequences of marihuana-a comparison with pre-drug performancePersistent cannabis users show neuropsychological decline from childhood to midlifeCurrent and former marijuana use: preliminary findings of a longitudinal study of effects on IQ in young adultsWhat has research over the past two decades revealed about the adverse health effects of recreational cannabis use?See also the commentary on this: https://www.ncbi.nlm.nih.gov/pmc...
What do you make of this Marijuana/Cannabis/Weed study?
I'm skeptical if this is showing causation or correlation. IQ tests measure both fluid intelligence (ability) and crystallized intelligence (knowledge) relative to age. If you've ever taken an IQ test, there are parts where you are supposed to look at a series of diagrams and figure out what the next one will be (fluid intelligence) and there are parts where you are given a word and asked for it's definition (crystallized intelligence). Fluid intelligence peaks in the late teens. After that it declines. So someone who takes a fluid intelligence test at age fifteen and at age thirty will mostly likely score better at age fifteen, although the difference will be slight. Since crystallized intelligence is knowledge-based, your level of education can have a major effect on your scores. And since teenagers who choose to use marijuana tend to be less ambitious, more social, more likely to have a mental illness, and more likely to ignore authority, they are probably also less likely to go to college, or even spend time reading a book. So, as a whole, they will not be increasing their crystallized intelligence at the same rate as non-users. If their levels of fluid intelligence decrease at the same rate as non-users and their levels of crystallized intelligence increase at a lesser rate than non-users, it stands to reason that their overall IQ score could drop, since it is relative to other people of the same age. This, however, would not be caused by the marijuana, but by the same factors that influenced them to start smoking marijuana in the first place.