But if you develop persistent muscle weakness, or muscle weakness with no apparent cause or normal explanation, it may be a sign of an underlying health problem. Voluntary muscle contractions are usually generated when your brain sends a signal through your spinal cord and nerves to a muscle.
Of these factors, only rising sea surface temperatures was found to influence hurricane intensity in a statistically significant way over a long-term basis. The other factors affected hurricane activity on short time scales only. rise in the world's sea surface temperatures was the primary contributor to the formation of stronger hurricanes since 1970, a new study reports.
What damage can hurricanes do? Over the sea, a hurricane, cyclone or typhoon can cause the level to rise by several metres. This rise in water causes massive waves to hit the shores near the storm. Overland, the hurricanes do a lot of damage, with powerful winds blasting the landscape. Heavy rains from the hurricane's clouds also cause flooding. E-mail this page to a friend