Ant Middleton used to burn letters from his wife and family while on military operations.
The \'SAS: Who Dares Wins\' star admitted he took the drastic steps because he didn\'t want any distractions from the outside world while he was working with the British Armed Forces.
Speaking in the new issue of Men\'s Health UK, which he guest edited, Ant explained: "When I was in the military and on operations, I wouldn\'t read any letters from my wife and family. I\'d burn them. I didn\'t need that in my head.
"I wanted to be totally focused on the job and do it to my best ability... and then I could get back to them.
"When I do my work, I am 100 per cent work, when I am being a husband, I am 100 per cent a husband. It allows me to be the best me, when I\'m away from the family, I see it as a short-term sacrifice."
Ant, 39, is also set to star in a new show for Channel Four, provisionally titled \'Snowflake Mountain\', in which he will test younger recruits physically and mentally and he thinks people need to be more resilient.
He said: "Mistakes happen and we all make them. What\'s important though is that you own your mistakes and learn from the mistakes you make in life.
"By doing that you can emerge from the situation and harness it to make yourself a better version of you for the future.
"Risk is growth. Failure is growth. Everyone should keep testing themselves. I\'ve tested myself multiple times, to the point of near-death. It\'s important to push your fears. But remember, they are individual to you. Do not compare yourself to other people. Don\'t let anyone or anything else define who you are."
