Apparently Philip Seymour Hoffman was born with no resistance to drug addiction  

It’s official now — it was drugs that killed Hoffman:

You’d think that with all his money, and access to the best rehab treatment it could buy, Philip Hoffman should have beaten his drug addiction hands down. But apparently in his case it wasn’t that simple. Apparently he had no resistance to drug addiction. Apparently he was born with the potential to become an incurable addict.

While many adults in the Western world have at some stage experimented with mind-altering substances — “alcohol, prescription pain killers, ADHD medication, anti-anxiety medication, and yes, even marijuana (save the ‘it’s not addictive” arguments for later, please)” — most escape serious consequences from such dabbling. That is because they were born with a resistance to addiction.

Which, unfortunately, is not the case with people like Hoffman.