Mind
HEALTH
Smell Tests Could One Day Reveal Head Trauma and Neurodegenerative Disease
Memory for odors is particularly complex, making scratch-n-sniff tests an early indicator of damage to the brain
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Scientific American's Top 10 Science Stories of 2015
An historic climate-change agreement, new views of the solar system, cybersecurity shortcomings and the discovery of a new human species—these and other events highlight the year in science and technology as selected by SA's editors
Research Confirms a Link between Intelligence and Life Expectancy
The reasons are unclear, but higher IQ is correlated with longer life span
New Drug Is First to Treat Progressive Multiple Sclerosis
Studies show that ocrelizumab works for both the relapsing and progressive forms of MS
How Sugar and Fat Trick the Brain into Wanting More Food
Junk foods can muddle the brain's satiety-control mechanism, sending our appetites into hyperdrive
Men and Women Can't Be "Just Friends"
Researchers asked women and men "friends" what they really think—and got very different answers
Beyond Resveratrol: The Anti-Aging NAD Fad
Whenever I see my 10-year-old daughter brimming over with so much energy that she jumps up in the middle of supper to run around the table, I think to myself, “those young mitochondria.” Mitochondria are our cells’ energy dynamos.
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VIDEOS
Concussions: Lattice Shape May Improve Safety Padding
Padding in sports helmets and other places prevent injuries, including concussions. The lattice may be one new safety-enhancing shape to come for sports, transportation, and the military.
![Building the Sphere of Archimedes [Video]](/sciam/cache/file/27E15F3C-16AD-4D5C-958FF4F5DBA67673_small.jpg?w=330&h=186)
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