Listen. 1  The signs and symptoms of hypermobile Ehlers-Danlos syndrome vary but may include: 2  Although hypermobile Ehlers-Danlos syndrome is thought to be a genetic condition, the underlying cause is unknown in most cases. A small percentage of people with this condition have a change (mutation) in the TNXB gene.
The right side of the hurricane is the strongest because a hurricane rotates counterclockwise. As a result the wind speed on the right side is the sum of the speed at which the hurricane is rotating and the storm's forward speed.
Hurricanes like Katrina are the most powerful storms in nature. They begin when a group of storms comes together over warm waters in the ocean along the equator. All summer long, these areas absorb heat from the sun. By late summer, the higher water temperatures allow storms to strengthen and grow.