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Science / Mind & Body

Snack first, then try on that cardigan.

Hunger Makes You Buy More Stuff, Even If It’s Not Food

Whether you’re shopping at the mall or online, having the munchies will compel you to purchase extraneous things

Midnight Snacking Is Bad for Your Brain

Experiments in mice show that misaligned eating patterns can mess with the brain’s ability to form memories and learn new tasks

As a kid, you may remember getting your first glimpse of paramecium in pond water or the cell structure of an onion by peering through a microscope.

Ultra-Cheap Microscopes Could Save Millions of Lives

Researchers are designing portable microscopes that cost just a few dollars to make

Imagining the future of artificial hearts.

Help for the Brokenhearted: Wearable, Biosynthetic and ‘Beatless’ Artificial Hearts

Cow-machine hybrids and continuous-flow technologies are helping people survive devastating heart failure

Adrenaline crystals (polarized light micrographs). Adrenaline, also called epinephrine, is normally present in blood in small quantities. It is a hormone produced in the adrenal glands above the kidneys. The glands are controlled by the hypothalamus, the part of the brain responsible for instinct and emotion. In times of stress, more adrenaline is secreted into the bloodstream. It widens the airways of the lungs and constricts small blood vessels. This makes the muscles work harder and produces a "fight or flight" response. Adrenaline used as a drug expands the bronchioles in acute asthma attacks and stimulates the heart in cases of anaphylactic shock.

Art Meets Science

Blood Clots, Liver Cells and Bird Flu Are Surprisingly Beautiful Under a Microscope

The brightly-colored micrographs and scans in a new book, Science is Beautiful, answer big questions about the human body

A former bombe operator shows the back of a drum from the decryption machine at Bletchley Park.

Brains Make Decisions the Way Alan Turing Cracked Codes

A mathematical tool developed during World War II operates in a similar way to brains weighing the reliability of information

How Long Will You Live? Ask Your Friends

A medical personality quiz started in the 1930s shows how your best pals may know more about your health than you do

Your big toe is an example of how "boundary conditions" can affect the curvature of a nail.

Toenail Physics Explains Why Big Toes Are More Likely to Suffer Ingrown Nails

The delicate balancing act between stresses of growth and adhesion can help demystify some painful nail disorders

The 2014-15 flu vaccine is here, but the CDC warns that it's not as effective as hoped.

A Universal Flu Vaccine May Be On the Horizon

Choosing the viral targets for the seasonal flu vaccine is a gamble. Sometimes, like this year, the flu wins

Ask Smithsonian: Five False ‘Facts’ About the Human Body

You can’t always trust what your mother told you

Social media may be more relaxing than anticipated.

Social Media Is Not Making You a Ball of Stress

But perhaps unsurprisingly, Facebook and Twitter can cause stress to spread when bad things happen to friends and family

Researchers exhumed the mummy of Cangrande della Scala in 2004 to perform a modern autopsy on the famous Italian autocrat.

Poison Hath Been This Italian Mummy’s Untimely End

A lethal helping of foxglove seems to have triggered the downfall of a warlord of Verona

Resolve not to have a grocery store overload.

Many Households Buy More Food in January Than During the Holidays

New Year’s resolutions to eat better lead many people to buy health food in addition to a continued junk food glut

Arachnophobia, coral reefs, artificial cells and strange amphibians starred in some of this year's science finds you might have missed.

Ten Cool Science Stories You May Have Missed in 2014

ICYMI, there’s a newfound coral reef in Iraq, the smallest force has been detected and more in this year’s surprising science

Puberty Is Beginning Earlier in Girls, So What Can Parents Do?

The authors of a new book about the earlier onset of female puberty explain the evidence and offer advice

Researchers found that human joint-bone density remained pretty high until recently in our evolutionary history, around the same time that humans began switching from hunting and gathering to farming.

Switching to Farming Made Human Joint Bones Lighter

A more fragile skeleton evolved about 12,000 years ago, probably driven by a shift from hunting to agriculture

The way cancer cells process zinc might help scientists identify a new biomarker.

Using Zinc to Detect Breast Cancer Early

Researchers at Oxford have taken the first step towards finding a new biomarker for breast cancer

Science can help you avoid a holiday gift faux pas.

How to Give the Best Gifts, According to Science

Researchers are unwrapping the science behind gift giving, from the value of simplicity to the quality of the bow on top

Meet William Harvey, a Misunderstood Genius in Human Anatomy

A new video from the World Science Festival tells the story of this medical pioneer

A light therapy session in a German clinic.

The Dangers of Winter Darkness: Weak Bones, Depression and Heart Trouble

Long periods without sunshine can play a role in a surprising variety of physical and mental disorders

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