Claims that cannabis is harmless have been disputed in a report that suggests the drug is becoming more powerful and could lead to long-term health damage.
The study, published in the
Heather Ashton of Newcastle University, UK explains that in the 1960s a typical 'joint' of cannabis contained 10 mg of delta-9 tetrahydrocannabinol (THC), compared to today when a joint may contain 150 — 300 mg. "Cannabis affects almost every body system. It combines many of the properties of alcohol, tranquillisers, opiates and hallucinogens," she stresses.
In a separate report in the same journal, Andrew Johns of the Maudsley Hospital, London emphasized the harmful effects...