Carrying excess weight for a long time can increase the risk of several health problems, some of which can have serious and potentially life-threatening complications. Here are some of the future complications of being overweight or obese for the long term:

1. Type 2 diabetes: Obesity is a major risk factor for type 2 diabetes, and carrying excess weight can make it harder for the body to regulate blood sugar levels. Over time, high blood sugar can damage organs and lead to serious complications, such as nerve damage, kidney damage, and blindness.

2. Cardiovascular disease: Being overweight or obese increases the risk of developing heart disease and stroke. This is because excess weight can raise blood pressure and cholesterol levels, and put extra strain on the heart.

3. Certain cancers: Obesity is associated with a higher risk of several types of cancer, including breast, colon, and pancreatic cancer.

4. Joint problems: Carrying excess weight can put extra pressure on joints, leading to arthritis and other joint problems.

5. Sleep apnea: Obesity is a common cause of sleep apnea, a sleep disorder in which breathing is repeatedly interrupted during sleep. This can lead to daytime sleepiness, fatigue, and other health problems.

6. Fatty liver disease: Obesity can cause fat to accumulate in the liver, leading to fatty liver disease. In severe cases, this can progress to liver damage and cirrhosis.

7. Mental health problems: Obesity is associated with an increased risk of depression, anxiety, and other mental health problems.

8. Reduced life expectancy: Obesity is linked to a shorter life expectancy, with studies suggesting that being overweight or obese can reduce lifespan by several years.

It's important to note that the risks of these complications increase with the degree and duration of obesity, and that weight loss can significantly reduce the risk of developing these problems.

There are many reasons why weight loss may be beneficial for an individual. Here are some of the most common reasons:

1. Health benefits: Being overweight or obese is associated with a higher risk of several health problems, including heart disease, type 2 diabetes, high blood pressure, stroke, sleep apnea, certain cancers, and joint problems. Losing weight can reduce the risk of developing these health conditions.

2. Improved mobility and physical function: Excess weight can put a strain on joints, making it more difficult to move around and perform physical activities. Weight loss can improve mobility and make it easier to perform daily tasks.

3. Increased energy: Carrying extra weight can be tiring, and losing weight can increase energy levels and reduce fatigue.

4. Improved self-esteem: Losing weight can boost confidence and self-esteem, which can have a positive impact on mental health.

5. Improved sleep: Obesity can contribute to sleep apnea and other sleep problems. Losing weight can improve sleep quality and duration.

6. Better overall quality of life: Losing weight can improve overall quality of life by reducing the risk of health problems, increasing energy levels, and improving mental health and self-esteem.

It's important to note that weight loss should be approached in a healthy and sustainable manner, with a focus on making long-term lifestyle changes rather than quick-fix solutions.