What Role Does the Sun Play in Vitamin D Synthesis?
The sun kickstarts a process that converts a vitamin D precursor into the active form your body needs.
Why Do I See This Dress as Blue and Black, While Others See It As White and Gold?
A combination of color and white balance, exposure, and computer displays likely play a role, as well as our own physical perception.
Is MSG Bad For Your Health?
Monosodium glutamate has gotten a bad rap for causing allergies, but is it justified?
Why Do Songs Get Stuck in Our Heads?
Why some tunes lodge in our brains isn’t so clear. Here are a few theories.
What’s the Cosmic Microwave Background?
The universe’s oldest light is one of the great pieces of evidence for the Big Bang.
What’s the Best Way to Dispose of Pet Poop?
Prevent disease by tossing feces in the trash.
Why Do We Remember Faces but Not Names?
You see a familiar face but space out on the name. Don’t beat yourself up. It’s only natural.
Are We Alone in the Universe?
It seems incredible that earthlings could be the first technological society. So where is everyone?
Why Do I Get Nostalgic?
That bittersweet longing for the past can have an important impact on the present.