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.
Racism an underlying cause of HIV epidemic, says Charlize Theron. Racism is one of the underlying causes of the HIV epidemic and one of the reasons why it has not yet been brought to an end, according to actor and Aids campaigner Charlize Theron, who says that people are afraid to talk about it.