As our brain ages, our cognitive abilities naturally decrease and it becomes more difficult to learn new things or devote attention to several things at the same time.
Researchers have long been looking for ways to slow down or even reverse this process.
Scientists at the University of Bonn in Germany and the Hebrew University of Jerusalem report in Nature Medicine that they have now achieved this goal in mice by administering a small quantity of THC, the active ingredient in the hemp plant (cannabis).
Mice have a short lifespan and begin displaying pronounced cognitive deficits even at one year old. So the researchers gave doses of THC to lab mice at the ages of 12 and 18 months over a period of four weeks.
A low dose was chosen to avoid any intoxicating effect in the mice.-- More...