A recent study found that the active ingredient in cannabis restores memory in older mice. But what — if anything — does that mean for us?
The study, published in the journal Nature Medicine, was conducted by scientists in Germany.
Over a period of one month, one group of mice of various ages was given continuous low doses of tetrahydrocannabinol or THC. A control group of mice was given a placebo.
The scientists tested cognitive ability like memory and learning skills in the mice. Normally you would expect learning and memory performance to decline with age. But this study delivered a surprising result.
After 28 days of treatment with THC, the older mice had regained both the memory and learning skills of healthy younger mice.
They had literally gotten smarter and could match the intellectual performance levels of younger mice from the control group, which was given a placebo.