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Best air purifiers

Best air purifiers 2023: Top picks from Levoit, Dyson and more

By Lou Mudge last updated

BUYING GUIDE Invest in one of the best air purifiers to keep on top of indoor air pollutants — tried and tested by Live Science.

BUYING GUIDE
Close up of Young Caucasian man looking at mirror worried about balding.

What is 'male pattern baldness'?

By Anna Gora published

Male pattern baldness begins at the top of the head and progresses over time.

An elderly woman celebrates her 100th birthday with a cake.

The secrets to extreme longevity may be hiding with nuns... and jellyfish

By Jennifer Nalewicki published

Some people live to be well beyond 100. But what genes and environmental factors contribute to such extreme longevity, and what can we learn from other long-lived animals?

a woman with long brown hair sits at her kitchen table and uses an at-home blood pressure monitor, which includes an inflatable cuff on her arm

What is normal blood pressure?

By Anna Gora, Bahar Gholipour last updated

Here's what doctors consider a "normal," elevated or high blood pressure, and how to measure your BP at home.

box containing narcan nasal spray pictured in a vending machine

FDA approves over-the-counter Narcan to combat opioid overdose crisis

By Nicoletta Lanese published

The U.S. Food and Drug Administration has approved a naloxone nasal spray for over-the-counter use.

photo of older white woman with white hair and glasses using a resistance band as she warms up for gymnastics

We're nowhere near reaching the maximum human life span, controversial study suggests

By Carissa Wong published

Human longevity records may be broken in the next few decades, a new modeling study suggests.

A Black girl writes in a notebook in a classroom.

Rates of autism diagnosis in children are at an all time high, CDC report suggests

By Sascha Pare published

A 2020 report from the Centers for Disease Control and Prevention has found that the prevalence of autism spectrum disorder among 8-year-old children is the highest it's ever been.

microscopic image of "syringe" proteins that look like thin, tubular nail-like shapes against a blue background

DeepMind's AI used to develop tiny 'syringe' for injecting gene therapy and tumor-killing drugs

By Nicoletta Lanese published

Researchers used the AI system AlphaFold to develop a tiny "syringe" that can inject proteins into cells.

two medical providers dressed in face masks and blue surgical scrubs examine a patient (covered in a blue sheet) during a surgery to evaluate for endometriosis

Why is endometriosis so hard to diagnose?

By Anna Gora published

Endometriosis often has vague symptoms that overlap with other conditions, and there are no non-invasive ways to definitively diagnose the condition.

A woman working on her laptop in bed yawns because she is so tired.

How long can you go without sleep?

By Donavyn Coffey published

And what can happen to your body if you stay awake way past your bedtime?

Person wearing a yellow biohazard suit in a decontamination shower against an industrial background.

How do you decontaminate objects exposed to radioactivity?

By Joanna Thompson published

Can a person or object exposed to high radioactivity just take a shower with soap and water, or is more needed for decontamination?

super close up image of a light pink tardigrade next to some sort of light green material

Tardigrade proteins could help stabilize drugs without refrigeration, scientists say

By Nicoletta Lanese published

Proteins found in tardigrades could be used to stabilize drugs that would otherwise need refrigeration.

sealed packages of raw chicken arranged in a refrigerator at a grocery store

Bacteria from meat may cause a half-million UTIs a year

By Nicoletta Lanese published

A new study estimates that bacteria on meat may be responsible for a significant number of urinary tract infections in the U.S.

Best massage gun being held in tester's hand

Best massage gun 2023: Relieve sore muscles and increase flexibility

By Joanne Lewsley last updated

BUYING GUIDE The best massage gun for aching muscles, tried and tested by Live Science.

BUYING GUIDE
Best electric toothbrushes

The 10 best electric toothbrushes 2023 for a deeper clean

By Joanne Lewsley last updated

Buying Guide Take control of your oral health with the best electric toothbrushes, tried and tested by Live Science.

Buying Guide
Concept of gene editing. Here we see a gloved hand with tweezers pinching out a part of a DNA double helix.

Gene therapy: Everything you need to know about the DNA-tweaking treatments

By Dr. David Warmflash published

Gene therapies treat or prevent disease by tweaking the content or expression of cells' DNA.

close up of a diagnostic test for HIV

You can now get a free at-home HIV test. Here's how.

By Nicoletta Lanese published

A new program will distribute 1 million free at-home HIV tests to U.S. residents and is collaborating with the dating app Grindr to promote the service.

close up of a hand holding package of contraceptive pills

Hormonal birth control slightly increases breast cancer risk, regardless of type

By Rebecca Sohn published

Hormonal contraceptives slightly raise users' risk of breast cancer, regardless of whether they're combination or progestogen-only.

close up photo of two mosquitoes with long thin legs, light tan bodies and dark stripes on their bodies

New invasive mosquitoes descend on Florida, raising concerns of disease

By Nicoletta Lanese published

A species of mosquito from Central and South America has spread to South Florida.

Illustration depicts a thyroid gland being attacked by antibodies

Hashimoto's disease: Causes, symptoms and treatment

By Dr. David Warmflash last updated

Hashimoto's disease, or Hashimoto thyroiditis, is an autoimmune condition affecting the thyroid gland.