The survey by Weight Watchers UK of 2,683 British adults indicated 32 percent said they always drive short distances when walking is a viable option, and more than half said they duck out of regular exercise sessions in favor of a night on the sofa.
The survey showed the average Briton does nothing but sit down for an average of four nights a week. Seventeen percent said they didn't have enough drive to have sex with their partner and went straight to sleep instead.
Also on the "can't be bothered" list were:
-- Decline a night out because they didn't want to get ready.
-- Shove everything under beds rather than tidying properly.
-- Join a new gym and then couldn't be bothered to attend.
-- Wait for the next bus rather than run for the one leaving.
Thirty-three percent admitted they simply can't be bothered to do anything but relax in their spare time.
"More than 14 million adults [in Britain] are leading more inactive lifestyles than is healthy or necessary," Zoe Hellman, head of public health for weight watchers, said in a statement. "The lack of motivation that this research highlights is putting people at risk of far reaching health issues later in life including obesity, type-2 diabetes and cardiovascular disease."
No further survey details were provided.