The British forced the issue by attacking the Chinese port cities of Guangzhou and Tianjin in the Second Opium War (1857â1858). Under the most-favored-nation clause, all of the foreign powers operating in China were permitted to seek the same concessions of China that Great Britain achieved by force.
The number of concussions experienced and whether teens also had headaches or nausea were not related to whether they also had emotional symptoms. Researchers also found that having a family history of psychiatric problems did not make teens any more or less likely to have emotional symptoms after a concussion.
Signs & Symptoms of a Teenage Girl With a Hormone Imbalance. Many hormonal changes occur during the teenage years. Young women often get their first periods during early adolescence, and many young girls experience symptoms such as acne, oily hair, mood swings and menstrual cramps. Most of these discomforts are a normal part of growing up. Occasionally, though, a teenage girl may exhibit signs and symptoms of a hormonal imbalance. After a young woman menstruates for the first time, she may experience irregular periods for a few years, says KidsHealth. After three years, though, lingering irregularity may indicate a hormonal imbalance.