Is Your Weight Gain Due To A Sluggish Metabolism?
Your body’s metabolism is a set of life-sustaining chemical reactions.
It’s the process that influences how much of your calories get stored as fat and how much gets converted to energy.
You've probably heard of metabolism and may even have a vague knowledge of what it is. However, there are many misconceptions about how metabolism affects your health, particularly with regard to weight loss.
It doesn't matter if you have 10 or 50 pounds to lose.
Even if you’re lean, your metabolism could be sluggish.
Research studies indicate that individuals who are of normal weight but metabolically unhealthy have a three-fold higher risk of mortality and/or cardiovascular events. 
The internal mechanism by which your body expends energy and burns calories is known as metabolism. It works around the clock to keep your body moving, even when you're in a state of resting or sleeping. It converts the food and nutrients you eat into the energy your body requires to breathe, circulate blood, develop and repair cells, and do everything else.
Your genes and aging, have a big role in how fast your metabolism works.
People's metabolic speeds affect how simple or difficult it is for them to gain or lose weight. Because a sluggish metabolism consumes fewer calories, more are stored as fat in the body; this is why some people struggle to lose weight just by lowering calories. A high metabolism burns calories more quickly, which is why some people may consume a lot of food and not gain weight.
Reboot your engine
Is revving up your metabolism possible even when it has gotten sluggish and slow over time?
Usually, a minor adjustment can help your body burn more calories. Thus, combined with a healthy diet and adequate exercise, it can provide that extra push to lose and maintain weight. As an example;
Increase your workout tempo.
A bit of regular high-intensity interval training could be helpful. Your metabolism can stay revved up and last up to a full day after a period of interval training. When walking or running on a treadmill or outside, as an example, increase your speed for 30 to 60 seconds before slowing down to your normal pace and repeat the cycle for up to 10 minutes.
Consume protein and lift weights.
When you eat, digest, and store food, your metabolism speeds up. This is known as the thermic effect of food. Protein tends to have a greater thermic effect than fats and carbs because it takes your body longer to burn and absorb protein.
Although it's unclear how much protein affects metabolism, studies suggest that the optimum method is to combine appropriate protein intake with weight training, which improves muscle mass and, in turn, boosts metabolism.
Green tea should be consumed.
According to studies, green tea includes a chemical called epigallocatechin gallate, which may help you burn more calories and fats. Consuming roughly 250 milligrams of epigallocatechin gallate (the amount in about three cups of green tea) could improve metabolism enough to burn an extra 100 calories per day, according to a 2011 meta-analysis published in Obesity Reviews.
Unhealthy Metabolism in Normal Weight People
German Centre for Diabetes Research (DZD), analyzed data from 981 subjects.
The study was done on individuals who were of normal weight and metabolically healthy, compared to individuals who were of normal weight but metabolically unhealthy. It was also in comparison to overweight and obese people.
The analysis shown below is of; health in lean, overweight, and obese people related to their metabolic activity.
Metabolically unhealthy lean people are at risk also. In fact, they have a three-fold higher risk of mortality and/or cardiovascular events.
Researchers doing clinical examination have found that in the case of.
Metabolically unhealthy lean people show two or more symptoms of metabolic syndrome.
It’s highly common for those individuals to have elevated glucose, dyslipidemia (elevated cholesterol or fats (lipids) in their blood), and hypertension.
And they even show early signs of impaired glucose tolerance, fatty liver, or early atherosclerosis (build-up of cholesterol, fats, and other substances in and on the artery walls).
The key point is;
People can have fast, slow, or average metabolism, regardless of their body size and composition.
The key takeaway is, overweight, obese, and lean individuals do become victims of sluggish body metabolism.
Is Your Immune System Affected by Your Metabolism?
The function of your body's immune cells and your body's metabolism are intimately related. Many studies have now established that changes in the body's metabolism have an impact on your immune cell activity. 
Several studies have shown that poor nutrition causes immunosuppression. As a result, increases your susceptibility to infection low-grade and chronic inflammation, which raises the risk of metabolic and cardiovascular disease, and disrupts your protective immune systems.
Obesity, diabetes, and cardiovascular disease
Obesity, diabetes, and cardiovascular disease are just a few of the chronic non-communicable diseases that are affected by the delicate balance between your body's metabolism and immune response. 
A healthy responsive immune relies upon your energy levels. Therefore, the way your bodies regulate and manage energy (i.e., metabolism), and your bodies' ability to fight themselves against pathogens (i.e., body's immune response) are inextricably intertwined. 
Metabolic changes and immune
In a 2020 published study, the metabolic changes and immune profiles in patients with COVID-19, we analyzed. 
It showed that severe covid-19 cases had metabolic disorders.
It’s vital to recognize that your body's metabolism is a mediator of your immune response.
Therefore, keep your body's metabolism healthy. It will help you ward off diseases, inflammation, pathogens, and viruses.
The Ultimate Metabolic Fix
Medical Research & References;
. Characteristics of metabolically unhealthy lean people
. Causes, Characteristics, and Consequences of Metabolically Unhealthy Normal Weight in Humans
. Changes in Nutritional Status Impact Immune Cell Metabolism and Function https://www.frontiersin.org/articles/10.3389/fimmu.2018.01055/full
[4,5]. Tracing the relationship between metabolism and immune response
. The Metabolic Changes and Immune Profiles in Patients With COVID-19