Acid reflux occurs when acid backs up from the stomach into the esophagus. This is common but can cause complications or bothersome symptoms, such as heartburn. One reason this happens is that the lower esophageal sphincter (LES ) is weakened or damaged.

Với mức độ béo phì ở trẻ em ở mức cao nhất mọi thời đại, các bậc cha mẹ, nhà trường thậm chí cả cộng đồng đang ủng hộ phong trào giúp những người trẻ tuổi ăn uống lành mạnh hơn

Cancer is the most common cause of death worldwide and a major cause of death in the UK, accounting for 29% of deaths from noncommunicable diseases. In 2012, there were 8.2 million cancer-related deaths worldwide and an estimated 14.1 million cancer cases, which is expected to increase to 24 million by 2035.