Paul McCartneyPaul McCartney’s recent heart surgery reportedly came about because he refused to give up drinking after being diagnosed with a heart murmur in 2005.

According to the New York Post, Paul had electric-shock treatment and has been on blood-thinning drug Warfarin since the murmur was detected more than two years ago but despite being told there could be complications if he drunk while on the medication, he refused to give up alcohol.

A source told the newspaper that his refusal to give up alcohol for the sake of his health “was a major source of problems between him and [then wife] Heather Mills.”

“He was abusing his body. She focused on him first.”

“He was receiving electrical shocks over the two years on his chest to help with his heart and was under strict instructions to stop drinking completely, which he didn’t do.”

“It’s not a threatening condition, he just needs to take better care of himself.”