Are dementia prevalence and incidence declining? Findings from a review of cohort studies

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Clarissa Giebel summarises a recent review global cohort studies, which asks the question – is dementia on the downturn, and are the risks the same in high-income or low to middle income countries?

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Are ‘night owls’ more at risk of suicidal thoughts and behaviours? New review on social and circadian rhythm dysregulation

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Nick Donnelly explores a recent systematic review, which finds a small association between identifying as a night owl and experiences of suicide.

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Traumatic brain injury has long-lasting mental health effects, but we need more robust science

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Lorna Collins considers an umbrella review of health outcomes following traumatic brain injury, which highlights significant evidence gaps in the field.

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Hormonal coil dosage and depression risk

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Dr Rachel Reid-McCann discusses the latest research on dosage of levonorgestrel-releasing intrauterine system (LNG-IUS) and the risk of depression. A well conducted study from Denmark “provides evidence of a dose-dependent association between LNG exposure and risk of subsequent depression across three dosages”.

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Uncharted territory: cumulative trauma and bipolar disorder

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Magda Skowronska summarises a recent systematic review which finds that cumulative trauma could lead to earlier onset of bipolar disorder. A review that has important implications for mental health professionals.

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A little of what you fancy: how changing alcohol consumption may affect risk of dementia

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Marissa Kube-Clare summarises a retrospective cohort study exploring the relationship between alcohol consumption and risk of dementia.

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Not all people who make a suicide attempt have a psychiatric diagnosis

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In her debut blog, Emma Wallace explores a recent US cross-sectional study, which suggests an exclusive focus on the mental health antecedents of suicide will exclude around 20% of people who attempt to take their own lives.

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School connectedness may protect against suicidal ideation in adolescents

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Monika Raniti and Jennifer Dam summarise a recent narrative systematic review, which suggests that school connectedness can help protect against suicidality, but the research points to it being more protective of suicidal ideation than suicide attempts.

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The risks arising from having ADHD: physical health, mental health, social and lifestyle

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Jack Wainwright explores how ADHD can impact on all aspects of our lives, not just the three key symptom domains, but on our lifestyle, physical and mental health.

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Is short sleep linked to risk of psychosis and could inflammation be a factor?

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Amy Ferguson summarises a recent study published by researchers in Birmingham, which suggests that persistent shorter sleep in childhood may increase the risk of psychotic experiences.

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