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Close-up of a man sitting in a circle during group therapy with his hands clasped.

Social anxiety disorder: Causes, symptoms and treatment

By Kim Ann Zimmermann last updated

Social anxiety disorder causes significant discomfort about social interactions.

photo shows a saline drip in the foreground and a blurred out image of a child in a hospital bed in the background

COVID-19 is a leading cause of death among US children and teens, study shows

By Nicoletta Lanese published

An analysis of mortality data shows that COVID-19 ranks as a leading cause of death among children and teens.

illustration of a human arm with the palmaris longus muscle highlighted in red

10 body parts that are useless in humans (or maybe not)

By Nicoletta Lanese published

There's some debate around which human body parts are useless and which aren't.

Illustration of neurons depicted in grey-blue with red light to signify action potentials

Brain cells gone haywire during sleep may lead to chronic pain, mouse study suggests

By Nicoletta Lanese published

A mouse study hints at why chronic pain and poor sleep are linked.

woman with insomnia awake in bed

Insomnia: Causes, symptoms and treatment

By Rachael Rettner last updated

Insomnia is a sleep disorder that makes it difficult to fall or stay asleep.

An ant drinking water pooling on a leaf.

Ants can detect the scent of cancer in urine

By Jennifer Nalewicki published

Ants use their antennae to sniff out cancer

a scientist's hand, covered by a purple glove, holds a petri dish with visible e. coli colonies growing on it

Antidepressants could fuel the rise of superbugs, lab dish study suggests

By Nicoletta Lanese published

A lab study suggests that antidepressants may push bacteria to become superbugs.

raw eggs and chives in a black bowl

Choline: Sources, benefits and deficiency

By Lou Mudge published

Choline is an essential nutrient that plays a role in metabolism and brain development.

woman struggling with anxiety in bed

Can't sleep? An expert reveals why anxiety may be worse at night

By Louise Bond published

Experiencing anxiety at night can interfere with sleep.

woman looking tired sitting on sofa

Hypersomnia: Symptoms, causes and treatments

By Anna Gora published

REFERENCE Excessive sleepiness could be a sign of a condition known as hypersomnia.

REFERENCE
Sad woman sitting corridor floor

Panic disorder: Causes & symptoms of panic attacks

By Kim Ann Zimmermann last updated

REFERENCE Panic disorder is marked by sudden episodes of intense fear, known as panic attacks, that can trigger physical symptoms.

REFERENCE
illustration of individual Neisseria gonorrhoeae bacteria depicted in purple

New 'concerning' strain of drug-resistant gonorrhea found in U.S. for 1st time

By Nicoletta Lanese published

A troubling strain of gonorrhea was identified for the first time in the U.S.

person stepping onto a pair of smart scales

Best smart scales 2023: Track body composition from home

By Maddy Biddulph published

BUYING GUIDE The best smart scales can provide a better insight into health and fitness, from body fat percentage to bone density.

BUYING GUIDE
illustration depicts amyloid-beta peptides, the building blocks of amyloid-beta plaques, building up in the brain among individual neurons

New Alzheimer's drug slightly slows cognitive decline. Experts say it's not a silver bullet.

By Nicoletta Lanese published

Experts weigh in on whether the newly approved Alzheimer's treatment lecanemab is worth taking.

man asleep, snoring

Sleep apnea: Symptoms, causes and treatments

By Rachael Rettner last updated

Sleep apnea is a condition in which people experience pauses in breathing, or shallow breathing, during sleep.

Woman recovering from a run

What is homeostasis?

By Nicoletta Lanese last updated

Organisms employ a suite of physiological and behavioral responses to maintain homeostasis.

Runner with knee pain, conceptual computer illustration.

What is inflammation?

By Jessie Szalay last updated

Inflammation is the body's response to injury. It works to help heal wounds, but it can also play a role in some chronic diseases.

woman turning off an alarm clock

What is a circadian rhythm?

By Lou Mudge published

A circadian rhythm refers to a person's sleep-wake pattern over 24 hours.

Young woman enjoying breakfast in kitchen at home

What is mindful eating, and is it good for you? We explore the science behind it

By Anna Gora published

From weight loss to digestive health, could savoring every mouthful have a positive impact on wellbeing?

A woman in bed covering her face with her hands

8 common sleep myths debunked

By Joanne Lewsley published

Discover the scientific facts that debunk these eight common sleep myths.