What REALLY happens when you’re hungry?
If you're like me, you like to know how everything LITERALLY happens. I get geeked out by science that I LIKE to learn, nutrition, exercise, and neuroscience (brain science) are my FAV. Thankfully for my boyfriend, he teaches me things I would have never known about because of his Nutrition Major and Exercise Physiology Minor. I am so grateful to learn from my babe!
Did you know that HUNGER is a physiological response to a need for food.
APPETITE is a desire to eat.
Let me break it down for you.
To understand appetite there are three things you need to understand:
Neuropeptide Y (NPY) is found in the hypothalamus and stimulates food intake. It's like the "dinner bell" telling your body it's time to eat. This lowers your BMR (metabolism). This lowers the number of calories burned at rest. It does this because you are not adequately feeding your body enough food (fuel). When you aren't feeding your body the right amount of food, it slows down because it is trying to conserve energy. Listen to your body's signals to know when to eat, how much to eat and when to stop eating.
Leptin is produced in adipose cells (fat cells), and tells the hypothalamus to inhibit (stop) production of NPY (above). Therefore decreases appetite. Leptin tells your body "shhhh" when it comes to food, like slow down and stop. The more fat cells you have the more leptin your body produces since they produce in fat cells. This tells your body to slow down with the food. Your body will naturally tell you when to decrease your appetite.
Ghrelin is released in the stomach when it's relatively empty. This is the "growl". When your hungry! It stimulates the hypothalamus to increase appetite. When obese people lose weight, ghrelin levels go up, fighting to get the person back up to their original weight.
The bad news is that a chronically high-fat, high calories diet may modify our genes. This leads to leptin resistance. Our “shhhhhhhhh” hormone is resistant, meaning that it doesn’t make enough of this and it changed our genes. We are able to eat more without having our bodies tell us when to stop. Chronic overeating can lead to changes in our natural genes and natural weight.
“Settling Point” is where our naturally bodies set back to. If we are listening to our bodies and feeding it the right amount it is asking for, it will go to a natural state at which weight we were intended to be at. The body will eventually “re-set” itself.
The good news is that with modest dietary changes and regular exercise, the body can eventually settle at a new lower weight. But not everyone since it varies from person to person! It’s not known how long this process takes. Weight rebound usually happens within 1-5 years. Continually listening to your body with regular nutritious food and exercise can lead your body to a natural “healthy” state.
Now this is always still an ongoing research but I thought this was REALLY helpful for anyone's journey to a healthier lifestyle. <3
I am a dedicated individual when it comes to health and fitness. I love the outdoors and being active.