Linda Hamilton took testosterone supplements to get back into shape for 'Terminator: Dark Fate'

She said: "'My blood pressure was spiking. I was getting angry and I couldn't explain why. Like, explosive! Apparently it turned out I'm just sensitive, and my body didn't like it."

Instead, Linda turned to sports performance specialist Mackie Shilstone for help.

She said: "I only got him because [Serena Williams] was pregnant.

"Mackie put me on supplements and was constantly researching the older body, because he works with pro athletes -- and there are no 60-year-old pro athletes."

Linda was previously married to Bruce Abbott - the father of her son Dalton - and James Cameron but has been single for 15 years and doesn't want to change things.

She told the Daily Mail newspaper columnist Baz Bamigboye: "[My life] 'has been defined by the absence of men. It's the absence of men that has made me thrive.

"My first husband left when I was pregnant. After that, I learned to assemble and build things, because somebody had to put the swing in the garden, and set up the crib."

But the 'Chuck' actress thinks she was "never" a good wife.

She said: "I was a terrible wife, because I forgot to drop everything and make them feel important when they came home.

"I was a terrible wife to my first husband, because he had to deal with my bipolar behaviour, poor fellow. I mean, I just ate him alive...

"I just don't feel that I'm built to be with one person; really, any person."

If she is looking for affection, Linda has her beloved dog Noodles.

She said: "I wake up and kiss my dog, and I'm happy. And she doesn't answer back."