Elevated methylmalonic acid (MMA) levels are associated with depressive symptoms and increased mortality risk, but depressive symptoms do not mediate the relationship between MMA and mortality. Highlights: Each standard deviation increase in MMA is associated with a small but significant increase in depressive symptoms. The association between MMA and depressive symptoms is more pronounced in …
Occlusion dysfunction (OD) is causally linked to an increased risk of Alzheimer’s disease (AD), while dentures restoration can mitigate this risk. Highlights: Periodontal disease (PD) and Alzheimer’s do not have a direct causal relationship (P = 0.395). Loose teeth significantly increase the risk of AD progression (P = 0.017, OR = 187.3567). Dentures restoration is …
Long-term practitioners of Orgasmic Meditation (OM) show distinct patterns of reduced brain metabolism compared to non-meditators, with significant differences in various brain regions involved in cognition, attention, and emotional regulation. Highlights: Reduced Metabolism: OM practitioners exhibit significantly lower metabolic activity in the frontal, temporal, and parietal lobes, as well as the anterior cingulate, insula, and …
High-intensity exercise (HIIE) leads to significant changes in brain activity, specifically in regions linked to dopaminergic and μ-opioidergic neurotransmission, which are associated with a mood boost. Highlights: Positive Mood Effects: Both low- and high-intensity exercise increased positive affect, as measured by the PANAS Positive Affect scale. Brain Activity Changes: HIIE resulted in significant decreases in …
Researchers reviewed the potential impacts of physical exercise on the glymphatic system and its implications for neurodegenerative diseases, focusing on the mechanisms involved and the interplay between exercise and sleep quality. Highlights: The glymphatic system, a brain cleansing mechanism, may play a critical role in the development of neurodegenerative diseases by clearing metabolic waste, including …
Adversity accelerates biological aging through health-compromising behaviors like smoking and possibly social disconnection, and future research needs to focus on causal methodologies to better understand these processes and develop effective interventions. Highlights: Mechanisms of Accelerated Aging: Recent studies suggest that adversity accelerates biological aging, with health-compromising behaviors, especially smoking, playing a significant role in this …
Aerobic exercise reduces depressive symptoms by decreasing inflammation, boosting dopamine transmission, and enhancing motivation and cognitive control. Highlights: Depression & Dopamine: Depression is linked to disrupted dopamine transmission, affecting reward processing and motivation, particularly in effort-based decision-making. Inflammation’s Role: Exercise reduces systemic inflammation, which otherwise impairs dopamine transmission and contributes to depressive symptoms like anhedonia …
Water pollution poses serious risks to human brain health, leading to neurological damage and increased risk of neuropsychiatric diseases. Highlights: Sources of Pollution: Water sources are contaminated by industrial waste, agricultural runoff, and urban waste, introducing harmful chemicals like pesticides, inorganic salts, and organic compounds into drinking water. Neurological Impact: Chemicals such as acrylamide in …
TLDR: High screen time exposure is significantly associated with an increased risk of myopia in children and adolescents, with computer use showing the strongest correlation, followed by television, while smartphone use shows no significant association. Highlights: Significant Link: The meta-analysis revealed a statistically significant correlation between high screen time exposure and increased risk of myopia …
TLDR: A study found that veterinarians frequently euthanizing animals have higher rates of serious suicidal thoughts and are more likely to support euthanasia for humans. Working with companion animals is associated with positive attitudes towards human euthanasia. Highlights: Data from over 2,500 veterinarians in Norway. 55% of veterinarians support euthanasia for humans with terminal illness. …
