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.
Marketing managers earned a median annual wage of $123,220 in 2013, according to the BLS. The best-paid 10 percent in the field made more than $187,199 per year, while the bottom 10 percent made less than $64,440. The best-paying jobs are located in the metropolitan areas of San Jose, California; Williamsport, Pennsylvania; and New York City.