Today there are a lot of dangerous diseases such as the flu at best and cancer at worst. The most common diseases today are diabetes due to obesity, obesity and crown worms being the newest that gives us a feeling. nausea strongly attacks our lungs and can lead to death, especially on old horses. Not all diseases are passed from one person to another, but ... we do the worst with our own hands, so we have to be careful what we eat. and take care of our health.