1. Psychology

    What part of us knows right from wrong?

    Our conscience may have evolved from our need to cooperate. Scientists are learning where the brain’s moral centers are, and how they make us human.

  2. Brain

    Expecting pain? That could really make it hurt worse

    How much someone expects something to hurt affects how their brain processes the pain, and how well they learn from it.

  3. Brain

    Marijuana use may affect decision-making areas in teen brains

    Marijuana use during adolescence may damage decision-making areas of the brain, according to a new study in rats.

  4. Brain

    Scientists Say: Opioid

    Opioid drugs work in the brain to stop pain. But the drugs also produce pleasure, which can make people want to take them over and over again.

  5. Brain

    Sleepless nights can leave brains feeling anxious

    Pulling an all-nighter boosts anxiety levels — and changes brain activity — the next morning, a new study finds.

  6. Brain

    Zaps to spinal cord help paralyzed people walk

    Sending electrical pulses to the spinal cord can help paralyzed people learn to walk again, new tests show.

  7. Brain

    Young people’s memory improves after stopping marijuana use

    Paying teens and young adults to stop using marijuana improved their memory within one week. The results hint that some impairments from pot may be reversible — at least for a time.

  8. Brain

    People may be literally led by their noses

    The brain links people’s senses of nagivation and smell, according to a new study.

  9. Brain

    How your brain is like a film editor

    A brain structure called the hippocampus may slice our ongoing lives into distinct chunks so that they can then be stored as memories.

  10. Brain

    The immune system has a say in how hard ‘teen’ rats play

    “Teen” rats like to wrestle. A new study shows the brain’s immune system might trigger changes that morph this desire for rough-and-tumble play into the calm of adulthood.

  11. Brain

    Less screentime linked to better memory, learning in kids

    Kids ages eight to 11 spend an average of 3.6 hours a day on screens, a new study shows. But the best thinking scores come from kids who average fewer than two hours a day of screen time.

  12. 860_mobile_phone_radiation.png
    Health & Medicine

    Teens’ cell phone use linked to memory problems

    A new study suggests teens who get more exposure to cell-phone radiation — and hold their phones up to their right ear — do worse on one type of memory test.