Recorded earlier this month at Kensington Palace, this was the first such personal video message from Catherine since she became Princess of Wales.The princess was backing a campaign to change perceptions of addiction and to "reduce prejudice", with the aim of encouraging more people to engage with support services.At a previous event she heard from TV star Ant McPartlin who talked about his addiction problems with strong painkillers.There were also warnings this week of the need to protect funding for preventative health projects about alcohol and drug misuse, which can disproportionately affect the poorest communities."At a time when addiction is growing across the UK, it is crucial we build awareness of its causes and act quickly to stop this tide, to get in early to reduce the impact on families and children," said Mike Trace, chief executive of the Forward Trust."