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Blood carotenoids offer the clearest signal of fruit and vegetable eating habits

The review finds that several candidate biomarkers may help estimate fruit and vegetable intake more objectively than self-reported dietary tools, but most remain limited by specificity, sampling burden, supplement use, or incomplete validation. Blood and skin carotenoids appear strongest for habitual intake, while vitamin C, folate, urinary flavonoids, hippuric acid, and potassium may be more useful for short-term intake or intervention adherence.

24 May 2026

Smartphone overdependence may signal higher alcohol and smoking risk in teens

Higher smartphone overdependence was significantly associated with greater odds of self-reported lifetime alcohol and tobacco use among more than 100,000 Korean adolescents. The study found graded dose-response patterns, with earlier initiation and heavier alcohol or smoking behaviors linked to a higher adjusted probability of high-risk smartphone overdependence.

21 May 2026

Restoring ADAR2 enzyme reduces metastatic spread in osteosarcoma

Osteosarcoma is the most common primary bone cancer in children, adolescents, and young adults. Although chemotherapy and surgery have improved survival for localized disease, outcomes remain poor when tumors spread to the lungs or return after treatment.

20 May 2026

Pennington and Vanderbilt launch major study on childhood obesity treatment

Pennington Biomedical Research Center, in collaboration with Vanderbilt University Medical Center, has launched a research study, the COACH trial, to test different ways to help children and their families improve their health through lifestyle changes delivered by primary care clinics in communities in Louisiana and Tennessee.

19 May 2026

Psychology professor calls for more thorough diagnostic assessments for ADHD

An increasing number of people are being diagnosed with ADHD, without researchers knowing exactly why. Greater awareness of ADHD and changes in diagnostic criteria may be one reason.

19 May 2026

Nutrition education improves diet quality in university students

Nutrition education at universities shows promise in improving dietary habits and mental well-being, highlighting the importance of healthy eating for students.

19 May 2026

Loneliness increased significantly over the past four decades in Japan

Despite widespread claims that social changes have intensified loneliness, no study has yet examined how loneliness has changed over time in Japan.

19 May 2026

Treatment delays rising among teens with cannabis use disorder

Teens may turn to marijuana use for many reasons: curiosity, stress relief, peer pressure, help with mental health, or for the positive feelings of being "high." However, there is a difference between casual use and reliance on cannabis to function.

18 May 2026

New therapies could help type 1 diabetes care move beyond insulin alone

Disease-modifying therapies for type 1 diabetes are beginning to move care beyond insulin replacement by targeting immune dysregulation, beta-cell stress, and preservation of endogenous beta-cell function. Teplizumab marks a major clinical milestone, but the review emphasizes that durable metabolic remission will likely require earlier screening, better patient selection, and sequential or combination therapies.

18 May 2026

Tezepelumab reduces asthma exacerbations in diverse patient population

The drug tezepelumab was shown to significantly reduce exacerbations in people with severe asthma in clinical trials.

18 May 2026

WHO warns of rising nicotine pouch addiction among youth

The World Health Organization (WHO) today issues a strong warning over the rapid global expansion of nicotine pouch products, which are being aggressively marketed to adolescents and young people.

17 May 2026

Data-driven breakthrough reveals the effective doses for ADHD meds

Researchers have identified the best dosage for each ADHD medication using data from thousands of people with the condition.

15 May 2026

Teen smoking risks vary between disadvantaged rural and urban communities

Teens in disadvantaged neighborhoods are more likely to smoke, but it depends on whether they live in rural or urban areas.

13 May 2026

Cannabis and tobacco co-use may increase psychosis risk

A new multisite study published in Nature Mental Health found that using cannabis and tobacco together increases the risk of developing psychotic disorders like schizophrenia among those considered high risk.

12 May 2026

Medicaid expansion associated with lower death rates in young adults with kidney failure

Among young adults with kidney failure, the expansion of Medicaid following the Affordable Care Act signed into law in 2010 was associated with substantial declines in one-year death rates, researchers from Brown University found in a new study.

11 May 2026

Wearable devices track real-time health effects of pollution and heat

As climate change drives more frequent extreme heat and worsening air pollution, researchers are seeking better ways to understand how these exposures affect health in real time.

8 May 2026

Study warns of rising severe malaria risk due to testing delays

Researchers from Children's Hospital of Philadelphia (CHOP), in collaboration with colleagues across the country, found that more than one in four pediatric patients treated for malaria in the United States had a delay in their initial diagnosis, increasing the risk of more severe infection.

8 May 2026

Emergency trauma surgery outcomes worse for children in low-income nations

Children who need life‑saving emergency surgery after a serious injury are almost six times more likely to die if in poorer countries than in wealthier ones, according to an international study led by the University of Cambridge.

8 May 2026

Adolescents view cannabis as safer than alcohol, vaping and cigarettes

Adolescents in California consistently perceive cannabis as less harmful than other commonly used substances, according to a new study analyzing data from two large statewide school surveys.

6 May 2026

Virtual reality training improves police interactions for autistic individuals

A new study led by researchers at Children's Hospital of Philadelphia and St. Joseph's University found that an innovative virtual reality intervention was helpful for improving interactions between autistic teens and adults and law enforcement officers.

5 May 2026