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The brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brainstem and the cerebellum. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making ...
The ten percent of the brain myth or 90% of the brain myth states that humans generally use only one-tenth (or some other small fraction) of their brains. It has been misattributed to many famous scientists and historical figures, notably Albert Einstein. [ 1] By extrapolation, it is suggested that a person may 'harness' or 'unlock' this unused ...
Vitamins and minerals are essential to the proper functioning and maintenance of the human body. [112] There are 20 trace elements and minerals that are essential in small quantities to body function and overall human health. [112] Iron deficiency is the most common inadequate nutrient worldwide, affecting approximately 2 billion people. [113]
In early July, a record $6.15 trillion was sitting in money market funds while the S&P 500 has notched 36 record highs this year. In the first half of 2024, the broad-based index rose nearly 15% ...
Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads : the ovaries in a female, the testicles in a male.
The hominoids are descendants of a common ancestor. Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family that includes all the great apes. [ 1] This process involved the gradual development of traits such as human bipedalism, dexterity ...
Preschool (US and UK) from 2 to 5 years old – held in a Nursery School; readiness has to do with whether the child is on track developmentally, and potty training is a big factor, so a child can start as early as 2 years old. Preschool education is important and beneficial for any child attending nursery school because it gives the child a ...
Down syndrome (United States) or Down's syndrome (United Kingdom and other English-speaking nations), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [ 3] It is usually associated with developmental delays, mild to moderate intellectual disability, and characteristic ...