Cancer risk to kids from cannabis use

WA researchers have warned that cannabis use causes genetic mutations that can be passed on to children and grandchildren.

University of WA scientists found cannabis alters a person’s DNA structure, potentially exposing future generations to serious illnesses and diseases such as cancer.

They said the implications for future generations had not been understood and were alarming.

The link between cannabis use and illnesses such as cancer was known but the research was among the first to look at why it occurred and the impact on future generations.

Associate Professor Stuart Reece and Professor Gary Hulse, from UWA’s School of Psychiatry and Clinical Sciences, reviewed all studies in the area.

Professor Reece said the research found cancers and illnesses were likely caused by cell mutations resulting from cannabis properties chemically interacting with a person’s DNA.

A person might appear to be healthy, yet unseen damage to their DNA could be passed on to their children and cause illnesses for several generations.

“With cannabis use increasing globally in recent years, this has a concerning impact for the population,” Professor Reece said.

“Even if a mother has never used cannabis, the mutations passed on by a father’s sperm can cause serious and fatal illnesses in their children.

“The parents may not realise they are carrying these mutations, which can lie dormant and may only affect generations down the track, which is the most alarming aspect.”

Professor Reece said when the chemicals in cannabis changed a person’s DNA structure it could lead to slow cell growth and serious implications for foetal development of limbs and organs.

“The worst cancers are in children exposed in utero to cannabis effects,” he said.