What are the most common illnesses you can get from being to skinny?

There are no specific illnesses that are directly caused by being too skinny. However, being underweight can increase your risk of developing certain health conditions, including:

- Nutrient deficiencies: This is a condition that occurs when your body does not get enough of the nutrients it needs to function properly. Nutrient deficiencies can cause a wide range of health problems, including fatigue, weakness, impaired immune function, and skin problems.

- Anemia: This is a condition that occurs when your blood does not have enough healthy red blood cells. Anemia can cause fatigue, weakness, shortness of breath, and dizziness.

- Osteoporosis: This is a condition that causes bones to become weak and brittle. Osteoporosis is more common in people who are underweight because they have less bone mass to start with.

- Heart disease: Being underweight has been linked to an increased risk of heart disease, although the exact reasons for this are not fully understood.

- Stroke: Being underweight has also been linked to an increased risk of stroke, although the exact reasons for this are not fully understood.

- Lung disease: Being underweight has been linked to an increased risk of lung disease, although the exact reasons for this are not fully understood.

- Depression and anxiety: People who are underweight may be more likely to experience depression and anxiety. This is likely because being underweight can lead to a number of physical and psychological problems that can contribute to these mental health conditions.

It is important to note that being underweight does not always lead to health problems. In fact, some people who are underweight may be perfectly healthy. However, if you are concerned about your weight, it is important to talk to your doctor.