Weight loss journey is tough but rewarding. To achieve your desired physique, you need to understand how your body reacts to various diets, exercise, and other lifestyle changes.

In this article, we take a closer look at the science behind the weight loss process.

What happens when you lose weight?

The weight loss process involves burning more calories than you consume. When you create a calorie deficit, your body taps into its stores of fat for energy. As you continue to lose weight, your body goes through various changes including:.

1. Fat cells shrink

When you consume fewer calories than your body requires, it turns to stored fat for energy. Fat cells release triglycerides to supply the body with energy, causing them to shrink.

However, the number of fat cells in your body remains relatively constant, unless you undergo a surgical procedure such as liposuction or gastric bypass surgery.

2. Hormone levels change

When you lose weight, your body alters the production of hormones such as leptin, ghrelin, insulin, and cortisol. These hormones regulate hunger, metabolism, and weight gain.

Losing weight can alter the balance of these hormones, leading to a decrease in hunger and an increase in metabolism.

3. Muscle mass increases

When you lose weight, both muscle and fat are broken down for energy. However, incorporating strength training exercises into your weight loss routine can help you retain muscle mass.

Building muscle can help boost your metabolism, leading to increased calorie burn even when you’re at rest.

4. Metabolic rate slows down

When you lose weight, your metabolism slows down as your body adjusts to a lower calorie intake. As a result, you burn fewer calories during rest and physical activity.

This is also why it can be harder to lose weight the more you lose, as the calorie deficit required to lose weight decreases with your weight loss.

5. Inflammation decreases

Carrying excess weight can cause inflammation in the body, which can lead to various health problems such as heart disease, diabetes, and arthritis. Losing weight can reduce inflammation, leading to improved overall health.

6. Insulin sensitivity improves

Insulin resistance is a condition where your body becomes less effective at using insulin to regulate blood sugar levels.

Carrying excess weight can cause insulin resistance, leading to high blood sugar levels and an increased risk of developing type 2 diabetes. Losing weight can improve insulin sensitivity, making it easier for your body to regulate blood sugar levels.

7. Gut bacteria changes

Gut bacteria plays a crucial role in a wide range of bodily functions including digestion, metabolism, and immune system function. Losing weight can alter the composition of gut bacteria, leading to improved overall health.

8. Energy levels improve

Carrying excess weight can lead to feelings of fatigue and reduced energy levels. Losing weight can improve energy levels, making it easier to be active and engage in daily activities.

9. Blood pressure decreases

Carrying excess weight can lead to high blood pressure, a condition that increases the risk of heart disease and stroke. Losing weight can reduce blood pressure levels, leading to improved cardiovascular health.

10. Joints feel less pain

Carrying excess weight can put pressure on your joints, leading to pain and inflammation. Losing weight can reduce the pressure on your joints, leading to reduced pain and improved mobility.

Conclusion

Weight loss is a complex process that involves various changes in your body. Understanding these changes can help you make informed choices about your diet and exercise routine to achieve your weight loss goals.

Remember, sustainable weight loss is achieved through a combination of healthy eating habits, regular exercise, and other lifestyle changes.