Why some people who “go to the gym” fail to lose weight

With nearly two thirds of the UK population classed as overweight or worse, a very common goal in the gym is to “lose weight”.  This is a fantastic goal for people to have, but so often, these people who go to the gym to lose weight and burn calories struggle or fail to actually change the scales… so what is going wrong? Here is one common reason…

To lose weight you need to burn more calories than you consume.  When it comes to exercise, you should be all about maximising your calorie burn.  People often make a simple mistake:

Thinking about exercise and calorie burning only when they are in the gym.

Don’t make this mistake and isolate and compartmentalise your life thinking only in the gym can you burn calories. Just as our bodies are single complex interacting systems and not just a “bunch of parts”…our lives are a single complex story, not just a “bunch of parts”.


Let us give you an example of 2 hypothetical identical twins.  They are exactly the same as each other.  They have the same lives, same jobs etc.  They only differ in their Peak and Background Activity levels.

Person A

  • Peak Activity – Train for 1 hour, 6 times every week.
  • Background Activity – Because they train hard so often, they just relax and put their feet up the rest of their spare time.

Person B

  • Peak Activity – Train for 1 hour, 3 times every week.
  • Background Activity – Equal measures of sitting around and gentle walking about.

Remember, other than the above, these 2 people have exactly identical lives.  So who is going to lose weigh quicker? The simple answer would be Person A, because they go to the gym twice as much as Person B!  They must lose weight more easily! So let’s do some rough and ready maths to see if that is the case.  First of all, we need to assume:

  • There are 168 hours in every week (24×7=168)
  • They both sleep 8 hours a night, or 56 hours per week (7×8=56)
  • They both work sitting at a desk for 37 hours per week
  • They both have 75 hours left in the week for training/leisure/sitting/walking etc (168-56-37=75)
  • They both burn 60 calories per hour asleep
  • They both burn 102 calories per hour in work
  • They both burn 68 calories per hour when sitting
  • They both burn 612 calories per hour when training
  • They both burn 224 calories per hour when walking

If we plug all the above info into a spreadsheet and look at the numbers over 1 week, we get the following results…

Calories burned in one week
Calories burned in 1 week

(We know the above is not a very realistic example, but it demonstrates the point we want to make very well).

You can see that although Person A has a Peak Activity level twice that of Person B, they are are not going to lose weight as quickly because their Background Activity level is so poor. And this is the mistake made by many people.  They think:

“I go to the gym regularly, so I don’t need to bother about anything else”.

For general health and fitness, going to the gym a couple of times a week is not the be all and end all. You want to try to live an active life. Our bodies evolved when we were still cavemen to deal with the following Background and Peak Activity levels:

  • Background Activity – Walking miles every day, tracking animals, securing territory borders, gathering and preparing food and drink, making and repairing tools and clothes etc.
  • Peak Activity – Hunting and killing animals most days, fighting for your life against rival tribes most days etc.

Our bodies are simply not designed to sit around at a desk/computer/TV all day.  But this is the habit that most of us have fallen into – and this, coupled with our unhealthy eating habits, is why nearly 2 thirds of us are overweight or obese.

This is why we like to encourage people to improve their health, fitness and bodyweight, by thinking about their whole wellbeing and lifestyle, and understanding more about their behaviours and habits so we can make different choices. In this case, by increasing Background Activity levels to burn more calories and control weight more effectively. 

It is very simple to do and there are millions of ways to do it including:

  • Use your car less than you do now
  • Park your car further away from your destination than you do now
  • Avoid lifts/escalators – use the stairs
  • Sit down less than you do now
  • Get a backpack and carry more/heavier loads when out shopping for your fresh fruit and veg than you do now.
  • Take a real pride in the fact that you physically move more than the people around you.

Put simply, all the above can be boiled down to a simple line:

“Always avoid the easy option”.

Live your life by this rule, and you will have the foundations of a healthy and fit body.  And with the right foundations, you can build up to anything!

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