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09/02/2026

Does ADHD really mean "low dopamine" The neuroscience says it's more complicated.

A new review in Frontiers in Psychiatry dug through 40+ years of research on ADHD and dopamine, brain imaging, genetics, animal models, and rare metabolic disorders, and found that the popular idea of ADHD as simply a "dopamine deficiency" doesn't hold up well.

A few surprising points from the study:

🔹 People with genuine, severe dopamine deficiencies (from rare genetic conditions) show movement disorders, not the classic symptoms of ADHD.

🔹 Brain imaging studies are all over the map, some show lower dopamine activity in ADHD, others show higher, and many show no difference at all.

🔹 The strongest genetic studies (GWAS) haven't found dopamine-related genes among the top genetic contributors to ADHD.

The researchers conclude that dopamine is clearly involved in ADHD, but it's part of a much bigger, more tangled picture involving multiple brain networks and neurotransmitter systems, not a simple "low dopamine" story like you often hear on social media.

Neuroscience is messy, and that's okay. Understanding the real complexity is how better treatments get built. Thanks for reading, find from me, link in he bio.

Reference: MacDonald et al. (2024)

09/01/2026

08/31/2026

Before the 20th century, children happily ate the same food as adults—then they got picky. Olga Khazan on a new book that explains what changed: (From February) https://theatln.tc/LJ3fU0cA

The historian Helen Zoe Veit explains in her forthcoming book, “Picky,” that children used to eat “spicy relishes, vinegary pickles, wild plants, and a huge variety of animal species and organ meats. They slurped up raw oysters and looked forward to their daily coffee.” Now, Khazan writes, many American kids like her son eat “little but macaroni and cheese.”

There are a few reasons for these changes. Children of the past used to do more chores and snack less, making them far hungrier at mealtimes and more willing to eat anything. As children became less active, a misguided, Progressive-era public-health campaign encouraged parents to serve their children “easily digested” food such as eggs, broths, and gruel. Additionally, child-nutrition experts at the time claimed that rich and flavorful foods were the culprits for children constantly getting sick. “Advice to parents on how to address pickiness in their children also shifted over time,” Khazan writes.

American kids today eat so poorly, Veit writes in her book, that they are actually getting shorter. At the same time, Veit notes, “parents are exhausted by the struggle” of getting picky eaters to eat.

At the link, Khazan explores the “kid food” phenomenon and reports on her attempts to use Veit's recommendations for her own son, a picky eater: https://theatln.tc/LJ3fU0cA

08/31/2026

The 🍑 has arrived!

08/30/2026

Last year’s Nobel Prize in Physiology or Medicine recognised how our immune system is kept in check so that attacks on healthy body cells are prevented.

Mary Brunkow, Fred Ramsdell and Shimon Sakaguchi made a series of discoveries that together described the role of regulatory T cells in a mechanism called peripheral immune tolerance.

Scientists are building upon their work. For example, researchers at Stanford Medicine have pinpointed a single signalling pathway that controls whether immune cells attack or befriend cells they encounter while patrolling our bodies. They hope that manipulating this pathway could allow them to toggle the immune response to treat many types of diseases.

The laureates’ work is already unlocking new avenues for the development of treatments - and even potentially cures - for autoimmune diseases.

Learn more about their work: https://www.nobelprize.org/prizes/medicine/2025/press-release/



To see who will be awarded this year’s Nobel Prizes, look out for the announcements of the 2026 prizes from 5-12 October, streamed live on nobelprize.org.

08/29/2026

https://www.instagram.com/reel/DcnPAg0BrzR/?igsi=MTk3b2Q1ZXl2bnRydA==

08/29/2026

Nature Reviews Psychology: The stress generation model suggests that a person's characteristics can increase their chances of experiencing stressful life events. This Perspective details the mechanistic processes of stress generation in people with internalizing psychopathology.

Link to the article in the comments.

08/29/2026

In 2002, Daniel Kahneman received the prize in economic sciences – not as an economist, but as a psychologist.

His groundbreaking work brought psychological insight into economics, challenging the idea that humans are purely rational decision-makers.

In his bestselling book 'Thinking, Fast and Slow', Kahneman breaks down how we think using two systems:

System 1 – fast, intuitive, emotional
System 2 – slow, deliberate, logical

He revealed how systematic cognitive biases – not just emotions – shape our everyday decisions. From money and risk to leadership and policy, his research changed how we understand human behaviour.

This book didn’t just explain the mind – it reshaped economics, finance, healthcare, and public policy.

Read more: https://www.nobelprize.org/prizes/economic-sciences/2002/kahneman/facts/

08/29/2026

Sorry, grandma, you might not like this answer. Click the link to read more ⬇️