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How you perceive time may depend on your income
The feeling of a long life
Research suggests new experiences could create more time codes in the human brain as it processes memory formation.
This could mean that people who can afford to enjoy more vacations and hobbies and have more stimulating jobs, will recall having lived for a longer time.
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Key Ideas
Sugar creates intense cravings
Sugar activates the brain's reward system that releases feel-good hormones. Too much sugar too frequently will hijack this reward system and will cause a loss of control, cravings and increased tol...
Sugar slows the brain down
A diet high in sugar makes learning difficult by slowing the brain down. Overconsumption of sugar damages synaptic activity in the brain.
When you consume too much sugar, you could develop resistance to insulin, the hormone responsible for regulating the function of brain cells.
The sugar crash
When you eat too much sugar, your blood sugar levels peak and drop. This causes you to experience irritability, mood swings, brain fog, and fatigue. You may find yourself feeling anxious or depressed. Carb-laden foods create the same response.
Chronically high blood sugar levels are linked to inflammation in the brain, which may be a cause of depression.
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Key Ideas
The different kinds of memories
We hold on to different kinds of memories.
- Short-term memories last seconds to hours and long-term memories last for years.
- We also have a...
Where your brain keeps memories
By studying people with amnesia, it seems that short-term and long-term memories don't form in precisely the same way, nor do declarative and procedural memories.
- Emotional responses such as fear occur in a brain region called the amygdala.
- Memories of learned skills are associated with the region called the striatum.
- The hippocampus is essential for forming, retaining, and recalling declarative memories.
- The temporal lobes play a critical role in forming and recalling memories.
How we experience memories
Memories are held within groups of neurons called cell assemblies. They fire as a group in response to a specific stimulus, such as recognising your friend's face.
The more neurons fire together, the more the interconnection of the cells strengthen. We experience the nerves' collective activity as a memory.
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Key Ideas
Being overweight affects the brain
A diet high in saturated fats and sugars affects your blood pressure, cholesterol, and blood sugar levels. It also affects the parts of the brain that are important to memory.
- A 20...
Memory problems
Obese people find it more difficult to pick apart spatial, item, and temporal memory, as well as the ability to integrate them.
If you're obese, you might be up to 20 percent more likely not to remember where you put your keys.
Changing eating habits
The diet of obese people degrades their memory and makes them more likely to overeat, a study revealed.
Making a meal more memorable may help to eat less bad stuff. If you watch TV while you eat, you'll eat more than planned.