THC inhibits the enzyme that regulates the neurotransmitters responsible for short and long term memory.
If you are a cannabis smoker or if you have ever consumed it, it is likely that you have experienced a temporary memory loss or have felt more forgetful. There is a scientific reason that explains this phenomenon, and is directly related to the different types of memory of the human being.
There is a single neurotransmitter that intervenes in all types of memory, from short-term memory, through verbal or spatial memory. It is acetylcholine, which intervenes, for example, in diseases such as dementia or Alzheimer’s, or others related to memory loss.
All memory problems are related to the number of acetylcholines. Whether it is higher or lower than optimal levels, it can lead to memory problems such as those mentioned above. To maintain these levels stable there is an enzyme, acetyltransferase.
Cannabis THC inhibits acetyltransferases, interfering in its work as stabilizers and causing an increase in the number of acetylcholines. This is positive in the cases of those people who need an increase of these neurotransmitters, but harmful if you do not need more. That’s why THC can affect negatively in the short-term memory, specifically.
However, no study so far has concluded that THC consumption has an impact on long-term memory. That is, you will only experience a small loss of memory while you are high, not after. This is due to CBD, which counteracts the effects of THC and stabilizes the level of acetylcholine.
In short, whenever you consume cannabis, look for varieties with high CBD levels. In Europe, countries such as Switzerland already allow the consumption of so-called light cannabis, with THC levels barely reaching 1%.