Four reasons not to run a marathon

If your New Year's resolution was to get in shape, signing up for the marathon is a bad way to go about it.

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  • Marathons gained popularity over the last decade. In 2018, 456,700 Americans completed a marathon, an 11 percent increase in participation from 2008.
  • Training for and racing 26.2 miles has been shown to have adverse effects on the heart, such as plaque buildup in the arteries and inflammation.
  • Running too much can lead to chronically increased cortisol levels, resulting in weight gain, fatigue, and lower immune function.
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This flu season is especially bad. Researchers may have developed a universal vaccine.

Georgia State University researchers have created a novel nanoparticle vaccine.

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  • A nanoparticle influenza vaccine developed at Georgia State University proved effective in mice.
  • The researchers combined a pair of influenza proteins in a novel approach to vaccination.
  • They plan on loading it onto microneedle patches for skin vaccinations in the next phase of testing.
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  • A study at the University of Virginia Brain Institute links the brain's pleasure center with our biological clock.
  • The easy availability of high-calorie foods has created a long feeding window each day, leading to an increase in obesity.
  • To combat this trend, closing the feeding window, as with intermittent fasting, is proving important for optimal health.
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A unique brain signal may be the key to human intelligence

Scientists exploring human neurons directly learn some remarkable things.

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  • Most research regarding human brains is performed with rodent brains on the assumption that it may also apply to us.
  • An unusual study looked at recently resected human brain tissue that turned out to contain some big surprises.
  • Human neurons' unexpected electrical signals and their behavior shed new light on human intelligence.
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A healthy sex life can help minimize depression and anxiety symptoms

When you struggle with anxiety or depression, sex may be the last thing on your mind. But understanding the physiological and mental benefits of a healthy sex life can help it become a tool for well-being.

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  • The physiological responses our bodies have to sex can minimize the symptoms of anxiety and depression.
  • Deficiencies in nitric oxide are associated with irritability, depression, anxiety, insomnia, and less energy. Having sex increases your body's nitric oxide levels.
  • Sex also increases epinephrine, oxytocin, dopamine and serotonin, all of which are linked to mood, behavior, and well-being.
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