In 2025, J. Zeng and a team from China reviewed 9 randomized trials with 514 adults battling depression. They compared high-intensity exercise (like intense running or weight lifting) to control groups, measuring depression with standard scales like the Hamilton Rating Scale for Depression (HRSD). Workouts lasted from weeks to months.

In 2025, Amy Amla Kartar and colleagues from the Colasanti Lab at Brighton and Sussex Medical School in the UK studied how high-ventilation breathwork (HVB) with music affects the brain and emotions. They tested 42 participants during 20-30 minute sessions of cyclic breathing, followed by questionnaires on altered states of consciousness (ASCs) and scans for blood flow changes.

In 2023, Daniel P. Windred and a team studied sleep patterns in thousands of adults across multiple cohorts, finding that sleeping in on weekends, called social jetlag, disrupts your body’s internal clock. Each hour of jetlag raises heart disease risk by 11% and worsens mood, obesity, and unhealthy habits like smoking or poor diet. A 2019 study by C.M. Depner showed that catching up on sleep after five short nights still caused 10-15% worse insulin sensitivity and higher calorie intake, leading to weight gain risks.

In 2025, Aleksandra Skoczek-Rubińska and a team from Poznan University of Physical Education reviewed 13 studies from 2009-2025 on how vitamin D helps BDNF (a brain protein for nerve growth), mood, and thinking in adults. They looked at human and animal studies from big databases to see how vitamin D levels or supplements affect people’s brains and feelings.

In 2025, EMJ reported a study testing ways to cut recreational screen time in adults. Using digital behavior interventions like app timers and mindfulness prompts, researchers tracked phone use and well-being over weeks.

A 2025 randomized controlled trial in Nutrients by Sharif et al. showed those who drank tocotrienols experienced better psychological well-being, lowered markers of oxidative stress, increased antioxidant enzymes, and improved genomic stability.

A 2025 feasibility trial by Meinlschmidt et al. studied 54 women with and without obesity after a 10-hour daytime fast. Both groups reported increased hunger and lower satiety, but mood effects differed: women with obesity experienced more depression and anger, while non-obese women mainly reported increased fatigue.