12,380 real negative results, null findings, and replication failures in Medicine. Search the index →
WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.
Denherder S, Neff D, Speck B et al. · 2025 · Developmental psychobiology
The COVID-19 pandemic introduced challenges for keeping participants and research assistants safe during laboratory visits. One solution was administering research assessments in the participant's home via an online platform, despite…
View details →Tang H, Shen L · 2025 · Frontiers in psychology
Objective As university libraries transform into "Learning Commons," peer collaborative learning has become increasingly common. However, the complexity of its effectiveness and its underlying mechanisms remain underexplored. This study…
View details →Berks JW, Williams MN · 2026 · Europe's journal of psychology
According to creative writing experts, adding conflict to dialogue improves story quality and audience reaction to that story. This idea draws from the widely held theory that conflict is vital for dramatic stories. Yet despite conflict's…
View details →Hu G, Woodman GF · 2024 · Visual cognition
Previous research suggests that applying anodal transcranial direct-current stimulation (tDCS) to the medial-frontal cortex can improve how quickly subjects learn to make simple discriminations (i.e., red from blue). Here, we tested the…
View details →Yi K, Zhan Y, Wei A et al. · 2026 · Drug design, development and therapy
Background The optimal analgesia regimen for patients undergoing laparoscopic gastrectomy is still unclear. This study evaluated the efficacy of ultrasound-guided rectus sheath block (RSB) with liposomal bupivacaine in providing sustained…
View details →Nilsen K, Kivi R, Laine M et al. · 2024 · Scientific reports
Although evidence of recovery in Antarctic stratospheric ozone has been found, evidence of recovery in Arctic ozone is still elusive, even though 25 years have passed since the peak in ozone depleting substances. Here we have used a…
View details →Lee SY, Shin SJ, Lee J et al. · 2025 · Scientific reports
Patients with open-angle glaucoma (OAG), a chronic visual impairment, are at elevated risk of developing depression. Physical activity (PA) has been associated with benefits for mental health, but evidence is limited regarding its impact…
View details →Perez-Arce F, Knapp D, Lobo R et al. · 2026 · Social science & medicine (1982)
Background A growing literature suggests that education positively influences cognitive function in later life. However, the magnitude and consistency of this effect across study designs and populations remain open questions. Methods This…
View details →Rodenhurst N, Messenger K · 2026 · Developmental science
Previous research into children's comprehension of syntactic structures has investigated early awareness of transitive and intransitive structures amongst monolingual children but research into bilingual children's understanding of the…
View details →Robins PL, Gilbert JR, Luber B et al. · 2026 · Human brain mapping
A core function of episodic memory is to distinguish between overlapping experiences by converting similar inputs into distinct, non-overlapping representations, a process termed pattern separation. While anatomical models emphasize the…
View details →Dong Y · 2026 · Brain and language
Drawing on interpreting research and intervention studies, this article proposes that the interplay between attentional control (AC) and language task schemas (TSs) effectively explains how language experience may enhance AC, and…
View details →Nenon D, Fuller G, Masselot P et al. · 2026 · Environmental epidemiology (Philadelphia, Pa.)
Background Some research has suggested that ultrafine particles (UFP), with an aerodynamic diameter less than 100 nm, might be the most harmful component of ambient particulate matter air pollution on human health. In the United Kingdom,…
View details →Van der Wielen I, Mrkonja L, Wiers R et al. · 2026 · Behavioural brain research
Reward learning can contribute to addictive behaviors by shaping attention and action selection. While reward-associated stimuli are known to capture attention, it remains unclear whether such learning can also guide behavior without…
View details →Lipman ET, Frishman WH · 2026 · Cardiology in review
Cardiovascular disease remains the leading cause of morbidity and mortality worldwide. Given the global burden, the potential role of micronutrients-particularly vitamins-in modifying cardiovascular risk has been a topic of intense…
View details →Katz JM, Yan R, Beltz AM et al. · 2026 · Appetite
Sex - and its associated gonadal hormones - matters for binge eating (BE). On average, females report higher BE than males. Estradiol generally suppresses appetite, whereas progesterone opposes estradiol's action such that their combined…
View details →Lara-Arevalo J, Corvalan C, Pemjean I et al. · 2025 · Advances in nutrition (Bethesda, Md.)
Healthy food voucher programs (HFVPs) provide lower-income participants with benefits to purchase healthy, nutrient-dense foods and are a promising strategy for improving dietary and nutritional outcomes. HFVPs can complement policies…
View details →Boffetta P, Zaridze D, Świątkowska B et al. · 2026 · Frontiers in oncology
Introduction Exposure to arsenic, cadmium, chromium (VI) and nickel increases the risk of lung cancer; whereas humans are exposed to mixtures, epidemiology studies refer to individual metals/metalloids. Methods We analysed the data of a…
View details →Bevilacqua K, Gemmill A, Jackson D et al. · 2026 · Journal of immigrant and minority health
Latina/e women in the United States (US) experience intimate partner violence (IPV) at similar or lower rates than other women but worse IPV-related health outcomes, perhaps due to barriers to help-seeking. IPV reporting to police is one…
View details →Martineau AR · 2026 · Current opinion in infectious diseases
Purpose of review This review summarizes findings of recent Phase 3 randomized controlled trials (RCTs) and meta-analyses investigating effectiveness of vitamin D supplementation for prevention and treatment of tuberculosis or acute…
View details →Yang NY, Ke TM, Huang Y et al. · 2026 · Life (Basel, Switzerland)
Background/Objectives : Pancreatic cancer is one of the most lethal malignancies, with poor survival and few established modifiable risk factors. While Helicobacter pylori ( H. pylori ) infection is a known cause of gastric cancer, its…
View details →Binder M, Blankenberg AK, Nickel J · 2025 · Ecological economics
A positive relationship between pro-environmental behavior and subjective well-being has been used to argue for a “double dividend”, i.e. the narrative that pro-environmental behavior is beneficial for both environment and individual, when…
View details →Wang Y, Sha S, Gwenzi T et al. · 2026 · Clinical nutrition (Edinburgh, Scotland)
Background & aims Vitamin D insufficiency and deficiency are common worldwide and linked to adverse health outcomes, including higher all-cause mortality. Two large randomized controlled trials (VITAL and D-Health), conducted in mostly…
View details →Braun D, Olmer A · 2026 · Frontiers in psychiatry
Background and hypothesis Toxoplasma gondii (TG) exposure and host immunogenetic variation have been implicated in psychosis. Interferon-gamma (IFN-γ) is central to TG control; the IFN-γ +874T/A polymorphism has been linked to variability…
View details →Vinceti M, Vicentini M, Ottone M et al. · 2026 · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS)
Background Consistent evidence from randomized controlled trials has shown that overexposure to selenium induces type 2 diabetes. However, uncertainties remain about the specific species and doses of selenium that trigger such diabetogenic…
View details →Arza A, Gong Y, Shu J et al. · 2026 · Physical review letters
Millicharged particles are well-motivated dark matter candidates arising in many extensions of the standard model. We show that, despite their tiny coupling e_{m} to photons, millicharged dark matter (mDM) in the Earth's geomagnetic field…
View details →Ishaqui AA, Alsaleh EA, Khalil AAA et al. · 2026 · Naunyn-Schmiedeberg's archives of pharmacology
Heart failure (HF) hospitalization is a high-risk transition period with frequent early post-discharge events; we evaluated whether oral metoprolol exposure during the index HF hospitalization is associated with lower all-cause death…
View details →Ward J, Agbude R, Smees R et al. · 2025 · Hearing research
This study examined the concentrations of excitatory and inhibitory neurotransmitters (glutamate and GABA respectively) in two regions of interest (auditory and insular cortices) and a control region (visual cortex) to test the hypothesis…
View details →Trotter D, Pariz A, Hutt A et al. · 2025 · Frontiers in synaptic neuroscience
Introduction Non-invasive brain stimulation techniques, widely used to manipulate neural excitability and behavior, are well studied at the meso- and macroscopic scales. However, less is known about their specificity at the level of…
View details →Makin A, Taylor A, Macpherson L · 2025 · Psychological reports
The attractiveness halo effect has been discussed for over a century. Physically attractive people are often judged more favourably and accrue many life advantages. Halo effects have been observed in university settings for decades, but…
View details →Lee P, Li J, Jones BC et al. · 2025 · Evolutionary psychology : an international journal of evolutionary approaches to psychology and behavior
Researchers have suggested that men with more masculine facial characteristics have stronger immune systems but are perceived to be less likely to invest resources in partners and offspring. How women resolve this putative trade-off…
View details →