USING cannabis may help protect over-60s against dementia, research suggests.
Scientists found the drug’s main psychoactive chemical, THC, could help boost memory in OAPs.
The German team claim weed has the opposite effect in the elderly than in the young, whose thoughts are left jumbled by use.
Previous research has found enjoying a spliff can damage long-term memory and trigger mental health problems.
But experts said studies have mainly focused on younger smokers.
Lab tests have now found the chemical improves brain function in elderly mice.
Human trials are set for next year.
Researcher Dr Andras Bilkei-Gorzo, from the University of Bonn in Germany, said he is “optimistic”