|
|
According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
![The steps in the hearing process. (1) Sound waves enter the outer ear and travel through the ear ...](https://biology-forums.com/gallery/29/medium_548020_14_05_17_11_46_39_291401614.jpeg)
![To broaden and lift the quadriceps muscles, place the heels of the hands together directly on top of ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_7_05_47_33305645.jpeg)