Hypothalamus News and Research

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The Hypothalamus is the area of the brain that controls body temperature, hunger, and thirst.

High estrogen alters brain circuit causing temporary memory impairment during pregnancy

Many women usually say the same thing during pregnancy: they walk into a room and forget why, misplace their keys or struggle to follow a conversation.

17 Sep 2026

Cold plunges may boost your mood, but the evidence is still on thin ice

A Molecular Psychiatry review examined evidence linking cold exposure with mood and mental health outcomes, alongside proposed roles for catecholamines, the HPA axis, and immune-inflammatory pathways. Early studies report short-term mood improvements and physiological changes, but clinical evidence remains limited, and the proposed mechanisms have not been established as drivers of lasting psychiatric benefits.

16 Sep 2026

The obesity-microbiome story is more complicated than ‘good’ and ‘bad’ bacteria

This review finds that obesity is linked to reciprocal interactions between diet, the gut microbiome, microbial metabolites, and host metabolic pathways that influence appetite, insulin sensitivity, inflammation, and energy balance across the lifespan. It highlights diet as a particularly tractable way to influence this system, while emphasizing that microbiome changes associated with GLP-1 therapies remain difficult to separate from weight loss and that functional multi-omics approaches may help enable more personalized interventions.

3 Sep 2026

New review challenges the eight-hour ancestral sleep myth

Everyone knows the number. Eight hours. It sits on wellness dashboards, on pediatric handouts, on the label of the melatonin bottle in the medicine cabinet.

25 Aug 2026

Jet lag may disrupt athletes' gut microbiome and slow recovery

The interplay between jet lag and gut microbiome affects athlete performance. Strategies to manage these disruptions are crucial but not yet fully established.

30 Jul 2026

Cambridge scientists solve brain puzzle behind popular obesity drugs

Cambridge scientists have solved the mystery of why both stimulating and blocking a particular 'switch' in the brain can help people lose weight – findings which could help boost the effectiveness of obesity drugs.

24 Jul 2026

Researchers uncover brain target to counter fentanyl-induced slow breathing

Fentanyl causes symptoms that can lead to death from overdose. One of these symptoms is slow breathing, which deprives drug users of oxygen.

20 Jul 2026

New guideline offers recommendations for testosterone replacement therapy use

The Society's Clinical Practice Guideline on testosterone replacement therapy in men with hypogonadism offers recommendations on appropriate testing and prescribing practices.

16 Jul 2026

GLP-1 receptor activation linked to lower depression and bipolar disorder odds

Genetic analyses linked BMI-related GLP-1 receptor activation to better mental well-being and lower odds of major depressive disorder and bipolar disorder. The findings do not prove that GLP-1 receptor agonist drugs treat psychiatric conditions, and randomized clinical trials are still needed.

15 Jul 2026

Setmelanotide shows promise for hypothalamic obesity after brain tumors

A new therapy helps achieve a healthier BMI in people whose weight has become dysregulated following treatment for a brain tumor, a clinical trial has found.

8 Jul 2026

Estradiol changes may shape how much women move during the menstrual cycle

A 28-day wearable-sensor study of 26 healthy naturally menstruating women found that active energy expenditure varied across the menstrual cycle and was higher in the early follicular phase than the late follicular phase.

21 Jun 2026

Gut microbes may help explain why obesity and type 2 diabetes become harder to reverse

This review describes how gut microbial messengers, including SCFAs, microbiota-modified bile acids, neuroactive metabolites, and extracellular vesicles, may shape obesity and type 2 diabetes through the microbiota-gut-brain axis.

17 Jun 2026

Brain histamine neurons control moment-to-moment memory accessibility

The same memory can feel vivid and accessible one moment, yet stubbornly out of reach the next - even when the memory itself remains intact.

11 Jun 2026

Timing of trauma strongly influences adult brain function and behavior

A research team from the Istituto Italiano di Tecnologia (IIT-Italian Institute of Technology), in collaboration with the IRCCS Istituto Giannina Gaslini in Genoa (Italy), has demonstrated that traumatic experiences occurring at specific stages of life - particularly from childhood through the early years following adolescence - have persistent effects on brain development and adult behavior.

12 May 2026