Why autism is diagnosed later in females than males

	Children's Health
	Large Swedish study finds COVID-19 vaccination unrelated to fertility or childbirth rates

	Why autism is diagnosed later in females than males Large-scale Swedish data reveal a female “catch-up” effect in autism diagnoses, reshaping how scientists understand sex differences in when, not whether, autism is identified. Study: Time trends in the male to female ratio for autism incidence: population based, prospectively collected, birth cohort study. Image credit: Elenka Klimova/Shutterstock.

	Large Swedish study finds COVID-19 vaccination unrelated to fertility or childbirth rates A Swedish registry-based cohort study evaluated whether COVID-19 vaccination affected childbirth rates among women aged 18 to 45 years during the pandemic period. No statistically significant association was found between vaccination, childbirth, or recorded miscarriage rates, suggesting demographic and socioeconomic factors likely explain observed fertility trends.

			High-quality family dinners reduce teen substance use risk yet severe adversity blunts the benefit Higher-quality family dinner interactions were associated with lower adolescent alcohol, vaping, and cannabis use in a U.S. survey of parent–adolescent dyads. This protective association was evident mainly among adolescents with low or moderate adverse childhood experiences, but not those with high adversity exposure.

			Study finds ADHD symptoms linked to higher internet addiction risk in college students A cross-sectional study of Chinese college students found ADHD symptoms were associated with internet addiction, with insomnia and executive dysfunction acting as mediating factors. Moderate and high physical activity levels were also linked with lower internet addiction symptoms, although causality cannot be inferred.

			Does concern about climate change influence meat choices? New U.S. survey suggests it does A nationally representative U.S. survey found that about 12% of adults self-report not eating red meat, with higher prevalence among women, older adults, college-educated individuals, and certain minority groups. Reporting climate change and environmental issues as a top national concern was independently associated with a greater likelihood of reporting no red meat consumption.

	New card deck helps children manage stress and build resilience A Case Western Reserve University professor has developed an innovative card deck designed to help children manage stress and build emotional resilience in today's challenging world.

	How children’s cooperation develops across cultures and communities How do children learn to cooperate with others? A new cross-cultural study suggests that the answer depends less on universal rules and more on the social norms surrounding the child.

	Childhood cancer survival varies by tumor stage at diagnosis A major study by UCL and Fondazione IRCCS Istituto Nazionale dei Tumori in Milan (INT) researchers has for the first time shown in detail how far children's cancer has spread at diagnosis in a way that can be compared between countries.

	Maternal perinatal depression linked to autistic traits in toddlers A research team from the Department of Psychiatry at Tohoku University, led by Dr. Zhiqian Yu and Professor Hiroaki Tomita, has uncovered compelling evidence that maternal perinatal depression - psychological distress occurring during pregnancy or postpartum - elevates the risk of autistic-related traits in toddlers, with a particularly strong impact on girls.

	Lack of pediatric data restricts use of life-saving antibiotics Life-saving antibiotics that could treat severe infections in babies and children aren't accessible due to a lack of data around safety and dosage, new research shows.

	Children’s cooperative behaviors align with cultural norms over time Children across the globe engage in a constellation of behaviors that support cooperation, an action critical to the survival of the human species, a team of Boston College researchers report today in the journal Science Advances.

	Next-generation sequencing expands possibilities for newborn screening Every year, millions of newborns undergo routine screening as a preventive strategy to detect inherited disorders before symptoms emerge.

	High-dose motor therapy improves outcomes after perinatal stroke In infants and toddlers who had a stroke before birth or as a newborn (28 days or younger), a treatment that combined restricting the use of the stronger arm with intensive task-oriented physical therapy led to improved function and skill gained on the weak side compared to standard care, according to preliminary late-breaking science presented today at the American Stroke Association's International Stroke Conference 2026.

	Early life factors crucial for childhood food allergy development A new study from McMaster University involving 2.8 million children around the world has revealed the most important early-life factors that influence whether a child becomes allergic to food.

	Poison at play: Unsafe levels of lead found in half of New Orleans playgrounds Sarah Hess started taking her toddler, Josie, to Mickey Markey Playground in 2010 because she thought it would offer a refuge from lead.

	New meta-analysis challenges claims of athletic advantage for transgender women A meta-analysis of 52 studies reveals insights into body composition and fitness in transgender athletes, challenging assumptions about competitive advantage.

	How personality and social media support together relate to anxiety levels Emotional support perceived through social media was statistically associated with lower anxiety among U.S. young adults, particularly females, in a large cross-sectional survey study. Personality traits, including openness, extraversion, agreeableness, and lower conscientiousness, predicted greater perceived online emotional support, although causal direction remains unclear.

	Specialized palliative care shows potential to enhance well-being in pediatric cancer patients How to reduce suffering in children with advanced cancer remains an ongoing but urgent question. A Mass General Brigham-led study examined whether systematically surveying children with advanced cancer and their parents about their symptoms and quality of life, providing feedback to children, families, and clinicians-and acting on that information by implementing personalized palliative care-could improve patients' experiences.

	Research provide new insights into the brain mechanisms underlying juvenile fibromyalgia Children and adolescents affected by juvenile fibromyalgia show greater sensitivity to non-painful sensory stimuli, such as sounds and bright lights.

	Brain differences reveal hidden causes of math learning disability On a simple math task - indicating which of two amounts is greater - kids with math learning disability get the right answer as often as their good-at-math peers, but behind the scenes, their brains are working differently, a new Stanford Medicine study has found.

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