95 STASHED IDEAS
Today’s smartwatches and health trackers that measure steps, heartbeat, skin temperature and oxygen levels in the body are a USD 80 billion industry.
We've been long told that adults have only so many brain cells and that we never form new ones and that once these cells are lost, they're gone for good.
However, in recent years, experts have discovered evidence that the statement above isn't true. The human adult brain does indeed still form new cells throughout life, even during old age.
This process of forming new brain cells is known as neurogenesis and it happens in the area of our brain called the hippocampus.
Decades ago, scientists noticed neurons increase their activity when an individual is taking a particular action, for example, waving when others are waving. They named them "mirror neurons."
But, your brain is really predicting your next action based on what you see, hear, and feel if you move. Seeing someone wriggle their fingers in the air and understanding it as a greeting is a normal part of your brain's predictive processes.
While you can't control everything, you can consider realistic options.
If you're worried about flying, research the physics and statistics, and remind yourself that you're safer in a plane than in your car. If you're concerned about a blemish on your face, make an appointment with your dermatologist.
The system for counting calories comes from chemist Wilbur Atwater. To find out how much energy we get from eating, he measured the nutritional value in food and subtracted the amount of energy left in people's bodily excretion.
His research resulted in the 4-9-4 rule: Each gram of protein, fat, and carbohydrate provides 4, 9, 4 calories of energy, respectively.
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