Explore today's Nissan JukeÂ®. 1  Engine Type. 6 cylinder. 2  Engine Displacement. 3.7 liter. 3  Engine Max. Power. 4  Transmission Type. 6 speed.
Others believe post-concussion symptoms are related to psychological factors, especially since the most common symptoms â headache, dizziness and sleep problems â are similar to those often experienced by people diagnosed with depression, anxiety or post-traumatic stress disorder.
The physical symptoms of anxiety are caused by the brain sending messages to parts of the body to prepare for the âfight or flightâ response. The heart, lungs and other parts of the body work faster. The brain also releases stress hormones, including adrenaline.