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91av. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

YARUMAL, - AUGUST 18 - Alirio sits in his living room with his son Alexis, 6, snuggles in and his wife Marta. Alirio, 42, is a coffee farmer who is also a participant in the University of Antioquia study who lives near Yarumal. The study, lead by Dr. Francisco Lopera, a behavioural neurologist at Medellin's University of Antioquia, researches a local family tree with a genetic mutation that causes early-onset Alzheimer's disease. The Colombian family's genetic curse may be the world's best hope for an Alzheimer's cure. In that family tree researchers have the perfect group to study the disease and have now begin a clinical trial to see if they have a medication that might be able to delay onset. in Medellin. (Steve Russell/Toronto Star via Getty Images)

Health

A moving story reveals hidden human cost of drug trials

Drug trials are vital to medicine, but what of those taking part? Jennie Erin Smith's moving new book about what happened in a rural community hit by early-onset Alzheimer's disease gives them a voice

Culture

Health

Weekend workouts can be as valuable as exercising throughout the week

News

Health

US government fired researchers running a crucial drug use survey

News

Health

Do Ozempic and Wegovy really cause hair loss?

Analysis

Health

Does aspirin have potential as an anti-cancer drug?

Analysis

Measles is spreading across the US – here is what you need to know

Health

Measles is spreading across the US – here is what you need to know

News

Health

Pregnancy’s lasting effects on different parts of the body revealed

News

Beautiful sport couple walking on the path in the park; Shutterstock ID 2189172403; purchase_order: -; job: -; client: -; other: -

Health

What the research says about the benefits of low-intensity cardio

Regulars

Mandatory Credit: Photo by Ute Grabowsky/imageBROKER/Shutterstock (13880334oy) Pack of Ozempic, antidiabetic drug for weight control, taken in a pharmacy in Niesky, 13.04.2023., Niesky, Germany Various 23aecabfaa

Health

The Ozempic era is only just beginning

Leader

Microdosing weight-loss drugs is on the rise – but does it work?

Health

Microdosing weight-loss drugs is on the rise – but does it work?

There are many claims about the benefits of microdosing weight-loss drugs, from anti-inflammatory effects to extending longevity. Do any of them stack up?

Features

Health

The unexpected impacts of a society transformed by weight-loss drugs

Features

Health

GLP-1 drugs are only the start – the powerful drugs to expect next

Features

Health

What do GLP-1 drugs really tell us about the brain's reward system?

Features

Health

Why exercise is more important than ever when taking weight-loss drugs

Features