1. Cardiovascular Diseases: Anger releases adrenaline and noradrenaline, causing blood vessels to constrict, increasing blood viscosity and potentially leading to heart problems like angina, heart attack, cardiac arrest, and sudden death. 

2. Gastrointestinal Disorders: Negative emotions affect the gastrointestinal tract, leading to muscle spasms, discomfort, and stomachaches.

3. Liver Diseases: Anger damages the liver by causing ischemia and impairing its regeneration ability, resulting in liver function damage. 

4. Respiratory Alkalosis: When angry, our breathing rate increases, leading to excessive CO2 elimination and increased blood pH.

This can cause respiratory alkalosis, characterized by dizziness, numbness, and seizures.