EXPERT
Hisham Hakim
Neurologist
Dr. Hisham Hakim practices Neuropathology in Birmingham, Alabama. Dr. Hakim studies, evaluates, diagnoses, and treats conditions that affect the nervous system. Neuropathologists are trained to fully understand and treat such conditions as Alzheimers disease and Parkinsons disease.
Hisham Hakim
- Birmingham, Alabama
- University of Aleppo
- Accepting new patients
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Are boys more likely to be developmentally behind girls?
Neuroscientists have known for many years that the brains of men and women are not identical. Men’s brains tend to be more lateralized—that is, the two hemispheres operate more READ MORE
Neuroscientists have known for many years that the brains of men and women are not identical. Men’s brains tend to be more lateralized—that is, the two hemispheres operate more independently during specific mental tasks like speaking or navigating around one’s environment. For the same kinds of tasks, females tend to use both their cerebral hemispheres more equally. Another difference is size: males of all ages tend to have slightly larger brains, on average, than females, even after correcting for differences in body size.
Electrical measurements reveal differences in boys’ and girls’ brain function from the moment of birth. By three months of age, boys’ and girls’ brains respond differently to the sound of human speech. Because they appear so early in life, such differences are presumably a product of sex-related genes or hormones. We do know that testosterone levels rise in male fetuses as early as seven weeks of gestation, and that testosterone affects the growth and survival of neurons in many parts of the brain. Female sex hormones may also play a role in shaping brain development, but their function is currently not well understood.
Sex differences in the brain are reflected in the somewhat different developmental timetables of girls and boys. By most measures of sensory and cognitive development, girls are slightly more advanced: vision, hearing, memory, smell, and touch are all more acute in female than male infants. Girl babies also tend to be somewhat more socially attuned—responding more readily to human voices or faces, or crying more vigorously in response to another infant’s cry—and they generally lead boys in the emergence of fine motor and language skills.
Electrical measurements reveal differences in boys’ and girls’ brain function from the moment of birth. By three months of age, boys’ and girls’ brains respond differently to the sound of human speech. Because they appear so early in life, such differences are presumably a product of sex-related genes or hormones. We do know that testosterone levels rise in male fetuses as early as seven weeks of gestation, and that testosterone affects the growth and survival of neurons in many parts of the brain. Female sex hormones may also play a role in shaping brain development, but their function is currently not well understood.
Sex differences in the brain are reflected in the somewhat different developmental timetables of girls and boys. By most measures of sensory and cognitive development, girls are slightly more advanced: vision, hearing, memory, smell, and touch are all more acute in female than male infants. Girl babies also tend to be somewhat more socially attuned—responding more readily to human voices or faces, or crying more vigorously in response to another infant’s cry—and they generally lead boys in the emergence of fine motor and language skills.
How long do nerves take to heal after surgery?
Regeneration time depends on how seriously your nerve was injured and the type of injury that you sustained. If your nerve is bruised or traumatized but is not cut, it should recover READ MORE
Regeneration time depends on how seriously your nerve was injured and the type of injury that you sustained. If your nerve is bruised or traumatized but is not cut, it should recover over 6-12 weeks. A nerve that is cut will grow at 1mm per day, after about a 4 week period of 'rest' following your injury
Numbness in left hand?
Consult a neurologist.
What causes a brain aneurysm?
Genetic.
