Reference Terms
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Self-esteem
In psychology, self-esteem or self-worth includes a person's subjective appraisal of himself or herself as intrinsically positive or negative to some degree (Sedikides & Gregg, 2003).Self-esteem involves both self-relevant beliefs (e.g., "I am competent/incompetent", "I am liked/disliked") and associated self-relevant emotions (e.g., triumph/despair, pride/shame). It also finds expression in behavior (e.g., assertiveness/timorousness, confidence/caution).
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Mind & Brain News
September 12, 2025
Sep. 10, 2025 — Glioblastoma’s stealthy spread has met a new challenge: MRI-powered fluid flow mapping that reveals where the cancer is likely to invade next. The innovation is now being advanced by a spinoff company to guide personalized cancer ...
Sep. 10, 2025 — Metformin, long trusted for diabetes, turns out to work in the brain too. By shutting down Rap1 in the hypothalamus, the drug lowers blood sugar more effectively than previously understood, opening doors for new ...
Sep. 9, 2025 — What we eat as we age may determine how many chronic illnesses we face later in life. A 15-year study of more than 2,400 older adults reveals that diets rich in vegetables, whole grains, nuts, and healthy fats slow the accumulation of diseases like ...
Sep. 9, 2025 — Scientists discovered that certain blood proteins linked to brain injury and inflammation strongly correlate with early signs of memory and cognitive decline, especially in Hispanic and Latino adults. This breakthrough points to a future where ...
Sep. 8, 2025 — UC Berkeley researchers mapped the brain circuits that control growth hormone during sleep, uncovering a feedback system where sleep fuels hormone release, and the hormone regulates wakefulness. The discovery helps explain links between poor sleep, ...
Sep. 8, 2025 — Scientists discovered seven molecules in the blood linked to excessive daytime sleepiness, a condition that affects one in three Americans and raises the risk of heart disease, obesity, and diabetes. The study highlights the role of both diet and ...
Sep. 8, 2025 — Scientists at Stanford have found that hyperactivity in the brain’s reticular thalamic nucleus may drive autism-like behaviors. In mouse models, drugs and neuromodulation techniques that suppressed this overactive region reversed symptoms, hinting ...
Sep. 6, 2025 — Getting a smartphone before age 13 may drastically increase the risk of poor mental health later in life, according to data from more than 100,000 people. Early use is linked to suicidal thoughts, aggression, and detachment, largely driven by social ...
Sep. 4, 2025 — A large Brazilian study following more than 12,000 middle-aged adults found that those consuming the most artificial sweeteners—commonly found in diet sodas, flavored waters, and processed snacks—experienced significantly faster declines in ...
Sep. 4, 2025 — Scientists have uncovered a surprising way Parkinson’s disease may start: tiny toxic proteins that punch holes in brain cells like revolving doors. Instead of causing instant collapse, these flickering pores slowly weaken the cells, which could ...
Sep. 4, 2025 — Meal timing shifts with age, and researchers found that eating breakfast later is tied to depression, fatigue, sleep problems, and an increased risk of death. Monitoring when meals are eaten could provide an easy health marker for aging ...
Sep. 4, 2025 — Scientists at the University of Bath have developed a simple three-minute brainwave test called Fastball EEG that can detect memory problems years before Alzheimer’s is typically diagnosed. Unlike traditional memory tests, it passively records ...
Latest Headlines
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Sep. 3, 2025 — Overactivation of dopamine neurons may directly drive their death, explaining why movement-controlling brain cells degenerate in Parkinson’s. Mice with chronically stimulated neurons showed the ...
Sep. 2, 2025 — Virginia Tech researchers are investigating how overloaded mitochondria in the brain’s memory circuits may spark early Alzheimer’s damage. Their work focuses on calcium signaling and how it might ...
Sep. 2, 2025 — A long-term study following insomnia patients treated with cannabis-based medical products revealed sustained improvements in sleep quality, mood, and pain management over 18 months. Most ...
Sep. 2, 2025 — High-ventilation breathwork with music can evoke psychedelic-like states, shifting blood flow in the brain and reducing negative emotions. Participants experienced unity and bliss, pointing to a ...
Sep. 2, 2025 — Once a universal feature of human psychology, the “unhappiness hump” in midlife has disappeared, replaced by a new trend: mental health is worst in youth and improves with age. Data from the ...
Sep. 2, 2025 — Japanese scientists have developed ADRIANA, a non-opioid painkiller that could provide powerful relief without the dangers of addiction. With successful trials already completed, large U.S. studies ...
Sep. 2, 2025 — A sweeping review of nearly 100 studies has raised concerns about the mental health impacts of high-potency cannabis products. Researchers found strong links to psychosis, schizophrenia, and cannabis ...
Sep. 1, 2025 — Researchers have uncovered why smell often fades early in Alzheimer’s: the brain’s immune cells dismantle key nerve connections between the olfactory bulb and brainstem. Membrane changes in ...
Aug. 29, 2025 — Harvard scientists have uncovered that lithium, a naturally occurring element in the brain, may be the missing piece in understanding Alzheimer’s. Their decade-long research shows that lithium ...
Aug. 28, 2025 — Using cannabis to self-medicate comes with hidden dangers—new research shows these users face higher paranoia and consume more THC. Childhood trauma further amplifies the risks, especially ...