Reports on the positive health impact of weight-loss drugs have been consistent. These professors say, ‘not so fast’

Much of the evidence accumulated on weight loss drugs and mental health so far suggests they make us feel better. And, in a sense, that’s exactly what we’d expect.

…

University of Cambridge neuroendocrinologist Prof Giles Yeo thinks so. “Losing the weight already puts a positive spin on life,” he says, agreeing that much of the benefit probably does come from the weight loss.

But like others in the field, he’s inclined to believe there’s something else going on. Something tied up with the dopamine circuit – the brain’s reward system, which can get out of whack in addictive behaviours – that we don’t quite understand yet.

Mis- and disinformation are distorting science and public policy. Subscribe to our Daily and Weekly Digests for incisive coverage of ‘disruptive’ innovations in AI, agricultural biotechnology, food, chemicals, nuclear energy, vaccines, and other disruptive innovations.

At the University of Oxford, psychiatrist Dr Riccardo De Giorgi and his team reckon they may be onto that something.

They’ve just finished a small study in which 70 volunteers completed specially designed computer-based tasks one week after getting a jab of semaglutide. The tasks assessed, partly, … their motivation and willingness to put in the effort to ‘win’.

The results aren’t published yet, but De Giorgi says they may offer “quite convincing evidence” of how even a single shot of GLP-1s can affect the brain’s reward system.

This is an excerpt. Read the original post here

Related Articles

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Does glyphosate—the world's most heavily-used herbicide—pose serious harm to humans? Is it carcinogenic? Those issues are of both legal and ...

Most Popular

Personalized-Cancer-mRNA-Vaccine-Vial
Personalized mRNA vaccines are poised to revolutionize cancer treatments. Here are the barriers.
Screenshot-2026-10-11-at-10.24.21-AM
Viewpoint: RFK Jr.’s new CDC head Erica Schwartz greenlights hepatitis B vaccine study critics call “unethical and designed to cast doubts on its safety”
Screenshot-2026-10-05-at-11.57.44-AM
Scaremongering or legitimate safety concerns? The political dogfight over America’s food safety system
ChatGPT-Image-Mar-10-2026-01_39_01-PM
Viewpoint—“Miracle molecule” debunked: Why acemannan supplements don’t work
Screenshot-2026-09-22-at-12.26.15-PM
‘Forever chemical’ concerns: Separating hysteria from reasonable concern in the debate over PFAS danger
Screenshot 2026-10-12 at 12.25
Tearful onions? CRISPR has a solution for that
Deepfake Democracy Media Mosaic
31 states have passed a patchwork of laws to limit election deepfake commercials. They’re not working very well.
Eating Nuts Adds up to Longer Life x
For millions with peanut allergies, Nurtured Nuts’ CRISPR gene-edited peanuts could ease the fear of accidental exposure
Screenshot-2026-10-12-at-10.44.38-AM
Widely condemned as unethical, hepatitis B vaccine study funded by RFK Jr’s CDC gets a final greenlight
Open-Menthol-Cigarette-Pack
How the tobacco industry conspired with conservative activists to kill the Biden administration’s proposed ban on menthol cigarettes 
Screenshot-2026-10-08-at-1.23.28-PM
Countries around the world are rushing to pass teenage social media bans. Could they backfire?
AI-Force-Uniform-Insignia-Close-Up
Trump wants an AI Force like Space Force, but that could make AI’s risks harder to manage
generated-1790707585414
Facts & Fallacies podcast: America's health care system is broken. A doctor explains how to fix it
glp menu logo outlined

Get news on human & agricultural genetics and biotechnology delivered to your inbox.