The most common type of headache is tension headache. It is likely caused by tight muscles in your shoulders, neck, scalp, and jaw. A tension headache: 1  May be related to stress, depression, anxiety, a head injury, or holding your head and neck in an abnormal position.  Tends to be on both sides of your head. It often starts at the back of the head and spreads forward.
The BLS reports that the upper 10 percent of marketing managers earned more than $187,199, as did managers in advertising and promotions. Market research analysts in the top ten percent earned more than $116,740.
(United States). A Marketing Assistant earns an average salary of $35,099 per year. For the first five to ten years in this position, salary increases somewhat, but any additional experience does not have a big effect on pay.Most people with this job move on to other positions after 10 years in this field.United States). A Marketing Assistant earns an average salary of $35,099 per year. For the first five to ten years in this position, salary increases somewhat, but any additional experience does not have a big effect on pay.