Amazon indigenous group's lifestyle may hold a key to slowing down aging
As a young PhD student, I spent a year living with hunter-gatherers. One of the things I noticed was an almost complete absence of cognitive decline with old age. I surmised that this lifestyle was far more in tune with our human “design-specs” and therefore created far less stress on their overall system.
Can the brain resist a group opinion?
We often change our beliefs under the influence of others. This social behavior is called conformity and explains various components of our behavior, from voting at elections to fashion trends among teenagers.
The reward system and decision-making
Scientists have, for the first time, recorded real-time changes in dopamine and serotonin levels in the human brain that are involved with perception and decision-making. Dopamine is the main component in all mammalian reward systems and is also critical to learning and memory.
Financially exploited seniors show brain differences and are more frail
The methods that scammers and fraudsters use put a stress on being able to see and hear things accurately - it stands to reason that this would be a mechanism for how older adults might be more vulnerable to financial exploitation.
Researchers link poor memory to media multitasking
Why do some of us have better memory recall than others? Things that happen even before you begin remembering are going to affect your memory recall and some of these factors are already within our control.
'Happy ending effect' can bias future decisions
Two different parts of the brain compete with each other when we make decisions based on past experience, causing us to overvalue experiences that end well despite starting badly, and undervalue experiences that end badly despite starting well.
Relationship value and economic value are evaluated by the same part of the brain
The research team investigated which part of the brain is responsible for judging the value of relationships with other people according to information indicating the other person’s commitment to the relationship.
Being in company boosts creativity
So many studies are now showing that working from home on a regular basis is bad for the individual, their family and the organization that employs them.
Stress, insomnia, and the immune system
Scientists have pinpointed the circuit in the brain that is responsible for sleepless nights in times of stress—and it turns out that circuit does more than make you toss and turn.
Why obeying orders can make us do terrible things
War atrocities are often committed by “normal” people “obeying orders.” Recently we have seen US border protection personnel in the US inflict needless pain on peaceful demonstrators in Portland. Why?
Experiencing childhood trauma makes body and brain age faster
In Europe and the US, studies have shown that the COVID-19 pandemic has led to an alarming increase in child abuse. In reality this isn’t entirely new, as previous studies have shown that it was already increasing, and the virus has only made the situation much worse.
Aging memories may not be worse, just "different"
Researchers looked at brain activity of older people not by requiring them to recite a group of words or remember a string of numbers. Instead, they looked at a “naturalistic approach,” one that more closely resembled real-world activities.
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