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Body & Brain

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illustration of blocking fertilization

ACCESS DENIED  After decades of research, reproductive biologists are on the verge of developing new birth control options that stop sperm from maturing or save a woman's eggs for later.

Itch

DON’T SCRATCH  Scientists reveal how the spinal cord communicates the discomfort of itchy bug bites to the brain.

black-legged tick on the left, lone star tick on the right

TICK TIMES TWO It can be difficult to correctly diagnose tick-borne diseases in locales with both the black-legged tick (left), which spreads Lyme disease, and the lone star tick (right), which can transmit southern tick‒associated rash illness or STARI.

Body & Brain

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