The human brain is not a static organ. From birth, it grows and grows, expanding in size, until around age twenty, and then for some strange reason, it shrinks gradually. It has been long thought that brain cells do not regenerate themselves in adulthood, but recent research indicates that this is not entirely correct.
In the same way that HGH powers brain neuron growth during early childhood, it is likely able to help the brain cells (neurons) divide and repair themselves. Each neuron in the brain has multiple branching extensions called dendrites. These dendrites have multiple endings called synapses. As we age, these dendrites and synapses will die gradually die off.
Dendrites are the nerve connections of the neurons, along which the electrical currents travel, in the brain. Loss of these dendritic connections are the main cause of age related memory loss, so say neuroscientists. But in many tests done on lab mice, it has been found that aged mice whose brains were stimulated with growth hormone, could perform many tasks which “normal” rats could not do.
Extrapolating those mice tests to human situations, we can say that brain aging can, and must be slowed down by whatever means, and in this regard, research on the effects of HGH on the brain could prove invaluable in the near future. But from a number of quoted research tests, a lot of mental cognitive functions seem to be related to the working of HGH upon the brain cells.
The results usually indicate HGH being closely linked to memory and cognitive ability. By measuring IGF-1 levels of people with poor memory function and IQ, it was found that they had low levels of it. IGF-1 is directly related to HGH, so the conclusion would be:
- Lower HGH levels = Lower mental ability
- Higher HGH levels = Higher mental ability and functioning
A classic example to point out, would be chess players, or other mental sports. If physical aging didn’t affect the brain, than logically there would not be a decline in the performance of older players of mental sports. They don’t use their body, only their minds; something that is harder to measure than plain brawn.
The only conclusion is that the brain’s powers do decline, and HGH is definitely related to that. If the HGH levels went up, then obviously, the mental capabilities would also improve correspondingly.