Parkinsons Overview. Parkinsonâs disease affects the nerve cells in the brain that produce dopamine. Parkinsonâs disease symptoms include muscle rigidity, tremors, and changes in speech and gait. After diagnosis, treatments can help relieve symptoms, but there is no cure.ymptoms of Parkinson's disease differ from person to person. They also change as the disease progresses. Symptoms that one person gets in the early stages of the disease, another person may not get until later-or not at all. Symptoms typically begin appearing between the ages of 50 and 60.
Earth's axial tilt is responsible for the four seasons that occur during the year. When a hemisphere is tilted towards the sun, that region receives more sunlight and becomes warmer, while the hemisphere that is tilted away receives less solar energy and is cooler. Keep Learning.
Transcript of What if the earth was tilted on its on axis at a 90 degree angle? What if earth's tilt was tilted at a 90 degree angle? if the Earth was tilted at a 90 degree angle, our seasonal changes would be at the most extreme possible. The Earth's pole would be pointing directly at the sun at least twice a year. When the pole points directly at the sun, not only would we have a whole day of sunlight (24 hours), but the sun angle would be very high. What if earth was tilted at a 90 degree angle?