An example at all three levels: if we do not carry out primary prevention (we will deal with these aspects in future issues), and the person develops obesity, hypertension (high blood pressure), diabetes, dyslipidemia (high cholesterol or triglycerides), etc. In other words, we already have the problem, now we have to prescribe medications and the correct use of them, lifestyle changes to prevent the patient from developing kidney failure, a stroke, a heart attack or other complications. However, if the patient has already had, for example, a stroke and is bedridden, it is now necessary to prevent bedsores or decubitus ulcers (ulcerated lesions or rotten tissue), which are caused by the continuous rubbing of the mattress against surfaces or bony projections such as elbows, coccyx region, hips, ankles, etc. in patients who remain lying in the same position because, due to the injury they have, they cannot move or move to another place or even in the same bed.

For all of the above reasons, the most important thing is to carry out primary prevention and thus avoid, as far as possible, the appearance of later disorders or diseases.

Many times we do not realize that something is wrong with us. In fact, diseases such as diabetes, cancer, osteoporosis, hypothyroidism, hypertension and many others generally do not produce symptoms and this causes damage to internal organs and structures and we do not know that this is happening in our body until we have a heart attack or stroke. That is why we often hear people say that this or that person was feeling fine, and “look what he/she got” without knowing that he/she had not been well for some time, but since he/she did not feel anything, he/she did not go to the doctor.