studies indicate that intentionally smiling moderately improves mood. When smiling, facial muscles signal the brain to align its activity with the smiling expression.
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Motion sickness occurs when your eyes and ears send conflicting signals to the brain about movement, causing discomfort. Look outside or explain the movement to alleviate it.
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If eye contact gives you anxiety, focus between the eyes. No direct eye contact but people can't tell the difference between real and fake eye contact.
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If you want to give bad news, don't announce it. Say something soft so that the listener concludes the news instead of debating or denying it. Eg. Your uncle had a heart attack and couldn't make it. The listener finds this more acceptable when he concludes "so is he dead?" instead of going in denial about hearing "your uncle is dead."
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If you are lonely, drink warm soup, wear socks, and get inside a blanket. The brain interprets physical warmth as social warmth, which then counters loneliness.
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Break down numbers into groups of 2-3. Group similar things together. The brain loves well-organized and small information. And it's easier to recall.
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If you are forgetful, tell your brain you have to remember something at a later date or time. This activates the brain's prospective memory which is responsible for "remembering to remember".
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