After certain workouts you’re left hungry and after others you’re not really feeling the need to feed. But why?
Well it turns out that certain workouts affect your body differently. Basically, the more intense the workout, the less likely you will be hungry when all is said and done. This is due to several factors.
Let’s take a look at a High Intensity Interval Training (HIIT) workout, for example. The name of this routine gives away the style of exercise: high intensity.
During this type of workout, your body is affected differently than it would be by a low intensity, longer alternative.
Blood flow is redirected to the lungs and muscles, which requires your digestive system to shut down (temporarily). During a long, low intensity run, your body is utilizing its resources at a more normalized rate, which means no resource redirecting and a higher likelihood of being hungry once you’re done.
This can affect you in the long term, too. Studies show that the hunger-producing hormone, ghrelin, is more present in athletes that perform low intensity sports than in ones that do high intensity ones.
So a steady-pace, long distance runner will have less ghrelin in his system and be more hungry on the regular than, say, a short distance sprinter.
However, this is not the only factor that will affect your hunger levels after a workout. There are many different things that can have an effect, including how much of your body you use.
Despite being considered a high-intensity exercise, swimming incorporates the whole body, which means that it’s more likely to leave you hungry than sprinting.
The same goes for weight lifting. It incorporates major muscle groups that wouldn’t be worked out during a standard aerobic exercise routine, and the need to heal the broken down muscles requires fuel (food).
So even if you turn weight lifting into a high intensity routine by performing exercises with minimal breaks, you’ll still be hungry after because your body needs to repair itself.
What can you take away from this? Basically, if you want to give yourself a leg up in the diet department, start doing some HIIT cardio ASAP. It looks like it’ll do you a world of good!