For individuals with specific autoimmune conditions, there appears to be an increased risk for affective disorders.

Fentanyl test strip use was associated with increased overdose risk reduction behaviors, but not with the risk for nonfatal overdose.

Sleep loss peaks in week 1 postpartum, then improves, but fragmented sleep persists for weeks, highlighting a key risk factor for postpartum health issues.

Autism spectrum disorder is tied to an increased risk for Parkinson disease, even after adjusting for depression and antipsychotic/antidepressant use.

Living close to cyanobacterial harmful algal blooms in US water bodies is associated with increased risk of mortality from amyotrophic lateral sclerosis (ALS).

Too much screen time in late childhood is associated with developmental changes in the brain, leading to more depressive symptoms in early adolescence.

Higher temperatures across the globe are associated with an increased probability of having obstructive sleep apnea (OSA).

Chronic pain and PTSD are associated, with the pain varying as a function of the course of PTSD, suggesting a potential path for treatment planning.