If no correlation exists between the variables, the points appear randomly scattered on the coordinate plane. If a large correlation exists, the points concentrate near a straight line. Scatter plots are useful data visualization tools for illustrating a trend. If the vertical (or y-axis) variable increases as the horizontal (or x-axis) variable increases, the correlation is positive.
Whiplash Whiplash, a severe neck injury, can cause stiffness and pain in the neck, headache, dizziness, and more. Aortic stenosis Aortic stenosis is a condition of the heart causing shortness of breath, dizziness, or chest pain.
Headaches are caused by tight neck muscles. The muscles go to the top of your head where they connect to muscles going around your head. When the neck muscles are tight they pull the head muscles into pain and that's your headache and the cause of your stiff neck.Tight neck muscles can press into the nerves leaving the spine that go to the areas around your head/face to cause the pains above your eyes.hen the neck muscles are tight they pull the head muscles into pain and that's your headache and the cause of your stiff neck. Tight neck muscles can press into the nerves leaving the spine that go to the areas around your head/face to cause the pains above your eyes.