The veteran star was diagnosed with "severe fibrillation" after the health scare, which occurred as he performed in a production of King Lear in Guildford, England, and he underwent heart surgery in March, 2015 to have a pacemaker fitted.

Blessed has since bounced back from the illness and is feeling stronger than ever - but he suspects his adventurous nature, which saw him climb Mount Everest in his late 50s and later train to become a cosmonaut, caused his heart problems.

Speaking after being made an Officer of the Most Excellent Order of the British Empire (OBE) by Queen Elizabeth II at Windsor Castle on Friday (07Oct16), he said, "What it is if you do climb Everest three times without oxygen, if you do go to the North Pole, the South Pole and all the other big mountain ranges and you do do space training, all this started for me at the age of 57, 58 and I never used oxygen, and there is a price to pay.

"It will have a tremendous effect on your body. Gradually I recovered and I shall continue doing adventures. I think the greatest danger in life is not taking adventure."

The 79-year-old Flash Gordon actor is now planning to resume pursuing his dreams as an adventurer, which he hopes will one day take him to the bottom of the sea, according to the North-West Evening Mail.

And he credits his newfound strength to his medical team, after telling the publication, "I want you to make me Terminator 4, I want to be going on adventures."

"I am now completely new," he declared. "I do 10 miles running a day and bench press between 200 and 300 pounds. Not out of vanity but in preparation for the adventures I want to do.

"I actually feel like a 30-year-old."