By Erica BushOriginal Source: metro.co.ukMichael Douglas has opened about his past struggles with drug and alcohol addiction, admitting he’s fearful his children will inherit the same genes. The 74-year-old actor, who shares 18-year-old son Dylan and 15-year-old daughter Carys with wife Catherine Zeta Jones, previously went to rehab for alcohol and drug addiction. His eldest son Cameron, 39 – whom he shares with ex-wife Diandra Luker – has also battled a heroin addiction and served time in prison for drug-related charges, while Michael’s half-brother Eric Douglas sadly died from an...click here to continue reading