Numerous other creatures, especially some whales and birds, also show a pattern
of increasing brain size relative to their bodies over the past tens of millions of years.
No one knows whether the versions in question
actually increase brain size, and the relationship between brain size and intelligence is also not clear.
In fact, improving our breathing could help to lower blood pressure, decrease stress, improve athletic performance, and maybe
even increase brain size.
«They have found a smoking gun in the human genome that connects a regulatory element with a proposed pathway
for increasing brain size,» says Todd Preuss, a neuroanatomist at the Yerkes National Primate Research Center in Atlanta, who was not involved with the work.
Page and his colleagues, who use animal models to understand how autism risk factors impact the developing brain and to identify potential treatments for the condition, have found that animals with mutations in the autism risk gene phosphatase and tensin homolog (Pten) mimic aspects of autism,
including increased brain size, social deficits and increased repetitive behavior.
His notion was that human abilities are localised and, when highly developed, could be felt as «bumps» on the skull caused by
locally increased brain size.
Subsequently, the underlying trend
towards increasing brain size in Homo is most strongly correlated with both decreases in lake presence and high levels of dust deposition in the Mediterranean ODP967 record (Table 3), indicating drier conditions in East Africa [43].
The combination
of increased brain size and a mother's narrower pelvic outlet (due to standing), caused a major change in human's gestation length.
They also feel that by enhancing social behaviors, a «dopamine - dominated striatum» personality type, as they call it, would have led to selection
for increased brain size and also language.
The increased brain size and prolonged dependency of evolving humans have each catalyzed the other.
«HARE5 seems to promote the ability to create more neurons and
increase brain size, which allows human brain development to take advantage of that,» Silver said.
A study by the University of Chicago offered new clues about the evolution of the human brain, identifying two genetic variations, both of which evolved within the past 60,000 years, that appear to
increase brain size and cognitive ability [source: Wade].
Meditation improves memory,
increases brain size, improves cooperation between brain hemispheres and enhances emotional intelligence according to the Exploration of Consciousness Research Institute.
«It can
increase your brain size,» he says — and the bigger your brain, the greater your capacity to remember.
Meditation improves your memory,
increases brain size, makes both brain hemispheres work together and enhances your emotional intelligence, according to the Exploration of Consciousness Research Institute.
Walking can improve mental health,
increase brain size, improve memory, and is correlated with improved, longer lifespans.
There are great costs, I said, to
increasing brain size.