Common causes of gas and bloating include: 1  Swallowed air. 2  Foods and beverages. 3  Lactose intolerance. 4  Constipation. 5  Medicines or nutritional supplements. 6  A medical condition, such as a bowel obstruction or Crohn's disease. 7  Changes in hormone levels.
HIV and AIDS social issues. In many regions, social issues increase the risk of HIV infection making it difficult to tackle the global HIV epidemic effectively. Certain groups of people are more affected by HIV than others. Sometimes this is because they engage in high-risk behaviours, while others experience stigma and discrimination that stops them from approaching HIV services.
HIV: Early signs and symptoms. HIV is a virus that attacks a person's immune system. It can weaken the immune system to the point where a person's body struggles to fight infections and disease. If left untreated, HIV can lead to the disease AIDS. AIDS stands for acquired immunodeficiency syndrome. AIDS is the final stage of HIV infection.