Nicole Karlis

Nicole Karlis is a senior writer at Salon, specializing in health and science. Tweet her @nicolekarlis.

Condoms in red wrappers
Sexually transmitted diseases are on the rise — so why are fewer Americans using condoms? Nicole Karlis
Nicotine patch, chewin gum and ecigarette
Are e-cigs better for pregnant people trying to quit? New research is at odds with expert advice Nicole Karlis
Doctor Examining Pregnant Woman
Maternity care deserts are spreading across the U.S., March of Dimes report finds Nicole Karlis
Volunteer planting a tree
Planting trees is critical to fighting climate change, but we don't have enough baby trees: study Nicole Karlis
Fruit fly (Drosophila Melanogaster) on a leaf
Fly-ing solo: scientists discover genetic on-switch for "virgin birth" in fruit flies Nicole Karlis
Sleeping Newborn Baby
Misinformation about chestfeeding is swirling online. Here's what that actually means Nicole Karlis
At the centre of this image is the young star V960 Mon
How baby planets are made: Planetary precursors revealed in stunning new space image Nicole Karlis
Newborn Baby
Breastfeeding linked to 33 percent decline in infant mortality, study finds Nicole Karlis
A 4 month old baby girl yawning
Wait, is white noise harmful for sleep now? How these bland vibes can be bad for baby — and you Nicole Karlis
Microbes in space, illustration
Alien biology: How will astronomers actually know if they've found extraterrestrial life? Nicole Karlis
Ritalin
Despite stigma, stimulant meds for ADHD do not encourage children to use drugs later in life Nicole Karlis
RSV Vaccine
FDA approves vaccine-like RSV shot for infants Nicole Karlis
Syphilis rapid test results
Syphilis cases in Houston are skyrocketing as health officials declare an outbreak Nicole Karlis
Ashwagandha superfood powder and root
For some, this anti-anxiety herb is a godsend. For others, it's a nightmare. What gives? Nicole Karlis
Birth control pills
FDA approves over-the-counter birth control — but potential cost remains a hurdle to access Nicole Karlis