{"id":6646,"date":"2020-07-15T14:49:44","date_gmt":"2020-07-15T06:49:44","guid":{"rendered":"https:\/\/paulstokes.com.au\/?p=6646"},"modified":"2021-04-26T14:04:22","modified_gmt":"2021-04-26T06:04:22","slug":"why-am-i-always-hungry-thoughts-behind-your-insatiable-appetite","status":"publish","type":"post","link":"https:\/\/paulstokes.com.au\/why-am-i-always-hungry-thoughts-behind-your-insatiable-appetite\/","title":{"rendered":"Why am I always hungry? Thoughts behind your insatiable appetite"},"content":{"rendered":"
It makes sense. When we exercise we burn more energy. Our body needs more fuel, so we become more hungry and are driven to eat. Nothing groundbreaking there. Have you ever experienced though, on your days off from training, that you can’t keep yourself away from the fridge? How come we can often become more hungry on our rest days?<\/p>\n
At this point, we’ll briefly cover some basic physiology and why we become hungry. There are other factors at play in determining how hungry you get. Not just the amount of exercise you do.<\/p>\n
Our appetites are determined to a certain extent by the following factors:<\/p>\n
Here’s some things to think about which might explain why we feel hungrier on rest days.<\/p>\n
There is evidence that levels of our appetite hormone increase when we are in an energy deficit. Put simply, the day after a big training day our body wants to replace the energy we’ve burned up. It will increase the level of certain hormones that signal our brain to eat more. Our body is literally telling us it needs more fuel.<\/p>\n
Like the fuel warning light on your car.<\/p>\n
You’ve probably experienced this at some point or another. You’ve trained particularly hard, at high intensity, and afterwards, you just don’t feel hungry.<\/p>\n
It might feel confusing, as you think you should eat, but your stomach isn’t growling and you feel fine going without food.<\/p>\n
When we train particularly hard, our muscles need lots of oxygen to keep performing. Our body will divert blood flow to these working muscles, so our red blood cells can deliver oxygen.<\/p>\n
As a result, our digestive system may have its blood flow restricted. Our body prioritising the external activity over its internal processes. This is sometimes referred to as ‘Fight or flight’ versus ‘Rest and digest.’ Since our gastrointestinal activity is slowing down, our appetite signals diminish with it.<\/p>\n
It appears that there is a bit of a delay in evening out our energy expenditure. There can be a lag of 1 or 2 days, or even longer, for the digestion to fully kick in and the body to start producing the hunger hormones at full capacity.<\/p>\n
There is a theory, namely the glycogenostatis theory, that suggests it is glycogen availability that signals our appetite.<\/p>\n
Our brain may be monitoring how fuelled up our muscles are and, as a result, provide signals to restore the energy balance.<\/p>\n
When we exercise, our glycogen stores within the muscles deplete. Our body would naturally want to replenish these fuel stores, with the view of increasing carbohydrate levels in the body.<\/p>\n
Glycogenostatis suggests our ’empty’ muscles signal to the body to eat more, thus restocking carbohydrate. Exactly how this process may work, and the pathways involved, are still unknown at this point. It is an area of developing research.<\/p>\n