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.
TMJ headaches are one of the more common TMJ symptoms. These headaches can often be so severe that they are mistaken for migraines! Whatâs worse is that the pain of a TMJ headache can actually trigger a really migraine, only adding to the pain! TMJ headaches are felt along the temples because the temporalis muscle spreads out over this area. When the muscle is strained for too long it will begin spasming and this will cause headache pain. Unfortunately, these headaches can last for extremely long periods of time.